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2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x *Discontinued* RO155
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x *Discontinued* RD106
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FRQ200, Flow Restrictor 200ML / min
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x *Discontinued* RO585NTF
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK420, Maintenance kit for RO565
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring

View Cart$1,851.94
Specials Log InCreate Account Checkout  Shopping Cart55 item(s)
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x *Discontinued* RO155
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x *Discontinued* RD106
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FRQ200, Flow Restrictor 200ML / min
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x *Discontinued* RO585NTF
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK420, Maintenance kit for RO565
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring

View Cart$1,851.94

AUC Union Connector OD Quick Connect QC Fitting [AUC]

$3.00

AUC Union Connector OD Quick Connect QC Fitting



* AUC, Union Connector, Quick Connect type

* Please choose size from the selection box below. Both numbers are tubing OD Outside Diameter (Pipe sizes can be confusing even for the experienced user. Pipe size is not the actual outside or inside diameter of the pipe but is the industry accepted designation. If you have any question please email us first.)
* 1/4" Tube OD x 1/4" Tube OD AUC0404
* 3/8" Tube OD x 1/4" Tube OD AUC0604
* 3/8" Tube OD x 3/8" Tube OD AUC0606
* 1/2" Tube OD x 3/8" Tube OD AUC0706
* 1/2" Tube OD x 1/2" Tube OD AUC0707


* Water & foods use: Products are manufactured from safe, non-toxic materials meeting the requirements of the US FDA, ERAS, ANSI/NSF-51,61, and SK Zert. Our products are widely used in water purification, food/beverage, and pneumatic systems.

* Function & Quality: Provides quick and convenient assembly-saving time & expense.

* Collet Design: Our unique oval collet design is superior and more practical, and is an improvement welcomed by our world wide customers in all industries.

* Additional Applications: Beyond water and food use, fittings can be used with air, gases, vacuum, & liquids. All connections can be assembled & disassembled repeatedly. A broad range of sizes covers a broad scope of applications.

* We carry different fittings in variation of sizes: 1/4", 3/8", or 1/2" adapters, connectors, fittings, or valves.  Most are not listed online, to avoid confusion to majority of RO system customers.  

* Send us a message with specification, intended application, and image of your setup or old fitting  to check if we have what you need. 

Available Options:

Size Combination:

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