Best Hydraulic Tube Compression Union Reducers. Reviews December, 2020

Metalwork Compression Union Brass Tube Fitting, 2pcs (1/4" OD x 5/16" OD)

Search only Metalwork brand name
Metalwork Compression Union Brass Tube Fitting, 2pcs (1/4

Current price: 9.99 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling

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Parker A-Lok 4RU2-316 316 Stainless Steel Compression Tube Fitting, Reducing Union, 1/4" Tube OD x 1/8" Tube OD

Search only Parker brand name
Parker A-Lok 4RU2-316 316 Stainless Steel Compression Tube Fitting, Reducing Union, 1/4

Current price: 15.64 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters

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Midland 10-473 Brass SAE 45 Degree Flare Reducer, 3/8" Male Flare x 5/8" Female Flare Thread, 1.12" Hex Size

Search only Midland brand name
Midland 10-473 Brass SAE 45 Degree Flare Reducer, 3/8

Current price: 11.73 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass

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Reduced Union Coupling, Brass Material, 22L x 8L, for 22MM OD Tube x 8MM OD Tube, Light Series

Search only FRS brand name
Reduced Union Coupling, Brass Material, 22L x 8L, for 22MM OD Tube x 8MM OD Tube, Light Series

Current price: 31.03 USD


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Weight: 0.440924524 Pounds

  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application

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Om Tubes Stainless Steel 304 Reducer Union Tube Fittings (3/4 "OD x 1/2 "OD (Pack of 3))

Search only Om Tubes & Fittings Industries brand name
Om Tubes Stainless Steel 304 Reducer Union Tube Fittings (3/4

Current price: 49.72 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • "Reducing union for connecting tubing of different diameters "

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Om Tubes Stainless Steel 304 Reducer Union Tube Fittings (10mm x 6mm (Pack of 5))

Search only Om Tubes & Fittings Industries brand name
Om Tubes Stainless Steel 304 Reducer Union Tube Fittings (10mm x 6mm (Pack of 5))

Current price: 43.03 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • "Reducing union for connecting tubing of different diameters "
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • Reducing union for connecting tubing of different diameters

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1/8" Compression Union Brass Tube Fitting, 1/8" OD x 1/8" OD, 5pcs

Search only MeiChi brand name
1/8

Current price: 8.49 USD

Saving: $0.50 (6%)


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • "Reducing union for connecting tubing of different diameters "
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • Reducing union for connecting tubing of different diameters
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts.
  • Three piece construction - nut, sleeve and body with attached insert.Easy to disassemble no flaring tool required.
  • Size: 1/8" Tube OD x 1/8" Tube OD

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Malida Quick Push to Connector, Water Tube Fitting,1/4" Tube OD x 3/8" Tube OD Reducing Straight Union,for RO Water Systems,Water Purifiers Tube Fittings,Pack of 10.

Search only Malida brand name
Malida Quick Push to Connector, Water Tube Fitting,1/4

Current price: 6.9 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • "Reducing union for connecting tubing of different diameters "
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • Reducing union for connecting tubing of different diameters
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts.
  • Three piece construction - nut, sleeve and body with attached insert.Easy to disassemble no flaring tool required.
  • Size: 1/8" Tube OD x 1/8" Tube OD
  • FDA approved, certified and tested under ANSI/NSF-61 for approved contact with drinking water
  • Applications include: Water Purifiers,Water Filter,RO system beverage dispensing refrigerator ice maker coffee machine etc
  • Material: POM(Polyoxymethylene), Polyethylene Plastic Water Tube Fitting
  • Connect and disconnect quick and easy without any other tools,100% leak free, 100% Re-useable
  • Quick connector 3/8" x 1/4" Tube push fit Reducing Straight Union,pack of 10.

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Vis Brass Compression Tube Fitting, Reducing Union, 1/2" Tube OD x 3/8" Tube OD (Pack of 1)

Search only Vis brand name
Vis Brass Compression Tube Fitting, Reducing Union, 1/2

Current price: 6.99 USD


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  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • "Reducing union for connecting tubing of different diameters "
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • Reducing union for connecting tubing of different diameters
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts.
  • Three piece construction - nut, sleeve and body with attached insert.Easy to disassemble no flaring tool required.
  • Size: 1/8" Tube OD x 1/8" Tube OD
  • FDA approved, certified and tested under ANSI/NSF-61 for approved contact with drinking water
  • Applications include: Water Purifiers,Water Filter,RO system beverage dispensing refrigerator ice maker coffee machine etc
  • Material: POM(Polyoxymethylene), Polyethylene Plastic Water Tube Fitting
  • Connect and disconnect quick and easy without any other tools,100% leak free, 100% Re-useable
  • Quick connector 3/8" x 1/4" Tube push fit Reducing Straight Union,pack of 10.
  • Three piece construction - nut, sleeve and body
  • Operating temperature range of -65 to +250 degrees F
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Reducing union for connecting and disconnecting two tubes more easily than with a coupling

More Info

Fafeicy 2Pcs 316 Stainless Steel Compression Tube Fitting, Double‑Ferrule Straight Reducer Union for Water Pipes, Oil Pipes Reducing (Ф8)

Search only Fafeicy brand name
Fafeicy 2Pcs 316 Stainless Steel Compression Tube Fitting, Double‑Ferrule Straight Reducer Union for Water Pipes, Oil Pipes Reducing (Ф8)

Current price: 16.39 USD


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Weight: 0.12786811196 Pounds

  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Three piece construction - nut, sleeve and body
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Union for connecting and disconnecting two tubes more easily than with a coupling
  • Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
  • 1/4" tube OD connection on one end and 1/8" tube OD on the other
  • Reducing union fitting for connecting and disconnecting two tubes with different diameters
  • Tolerance +/- .03 on all dimensions. Dimension data can change without notice. Please call us when dimensions are critical
  • Use with copper, brass, aluminum and steel hydraulic tubing that can be flared
  • 650F to +2500F (-530C to +1210C) range at maximum operating pressures
  • Good resistance - use long nut when greater vibration resistance is required
  • Made of brass
  • Single ferrule fitting for assembly with tubing
  • With compression connection at both ends
  • Made of brass material
  • Straight design for assembly tube in straight direction
  • Compression Fitting for high pressure application
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • "Reducing union for connecting tubing of different diameters "
  • For use with stainless steel tubing
  • Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
  • Chemically hardened type 304 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
  • Fitting connects to tubing on both ends
  • Reducing union for connecting tubing of different diameters
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts.
  • Three piece construction - nut, sleeve and body with attached insert.Easy to disassemble no flaring tool required.
  • Size: 1/8" Tube OD x 1/8" Tube OD
  • FDA approved, certified and tested under ANSI/NSF-61 for approved contact with drinking water
  • Applications include: Water Purifiers,Water Filter,RO system beverage dispensing refrigerator ice maker coffee machine etc
  • Material: POM(Polyoxymethylene), Polyethylene Plastic Water Tube Fitting
  • Connect and disconnect quick and easy without any other tools,100% leak free, 100% Re-useable
  • Quick connector 3/8" x 1/4" Tube push fit Reducing Straight Union,pack of 10.
  • Three piece construction - nut, sleeve and body
  • Operating temperature range of -65 to +250 degrees F
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Compression tube connections on both ends
  • Reducing union for connecting and disconnecting two tubes more easily than with a coupling
  • Break the traditional installation method, double ferrule type installation is environmentally friendly, reusable, easy to operate, and can be removed freely.
  • The connection is firm, high pressure resistance, with tightness and the repeated installation, simple and convenient installation and maintenance, and the work is safe and reliable.
  • Selected high-quality stainless steel 316 materials, the inspection indicators are in line with the standard.
  • The surface of the joint is finely polished by a special process, the hand feel is smooth and delicate, the interior is clean and bright, and the ruler can be accurately controlled.
  • No welding is needed, which is good for fire prevention, crack prevention, high‑altitude operation and can eliminate the disadvantages caused by inadvertent welding.

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