Log In Log In  |  Checkout   |  168 item(s)
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x *Discontinued* RD102
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x *Discontinued* RO155C
2 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x *Discontinued* RD106
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FRQ850, Flow Restrictor 850ML / min
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
3 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x KT-103, Optional Manual Membrane Flush Valve
1 x 741-14, Diverter Valve for Countertop Water Units
3 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x *Discontinued* RO155
1 x PE Tubing Tube Cutter
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 706, Membrane Filter Casing Housing Assembly
1 x 752, DC Booster Pump w/ Transformer
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x MK420, Maintenance kit for RO565
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x WSACF-150T, Whole House Water Treatment ACF-150T
2 x EMT-10, Empty Filter Cartridge Casing Housing
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 719, Drain Saddle Clamp / Valve
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FRQ420, Flow Restrictor 420ML / min
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 720, Feed Water Adapter with Needle Valve
1 x 723, Feed Water Adapter with Ball Valve
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x HK120-P-TK for USA 110V / 60Hz
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x WS-150M, Whole House Water Softener
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x *Discontinued* RD150
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)

View Cart$13,322.64
Specials Log InCreate Account Checkout  Shopping Cart168 item(s)
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x *Discontinued* RD102
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x *Discontinued* RO155C
2 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x *Discontinued* RD106
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FRQ850, Flow Restrictor 850ML / min
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
3 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x KT-103, Optional Manual Membrane Flush Valve
1 x 741-14, Diverter Valve for Countertop Water Units
3 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x *Discontinued* RO155
1 x PE Tubing Tube Cutter
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 706, Membrane Filter Casing Housing Assembly
1 x 752, DC Booster Pump w/ Transformer
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x MK420, Maintenance kit for RO565
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x WSACF-150T, Whole House Water Treatment ACF-150T
2 x EMT-10, Empty Filter Cartridge Casing Housing
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 719, Drain Saddle Clamp / Valve
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FRQ420, Flow Restrictor 420ML / min
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 720, Feed Water Adapter with Needle Valve
1 x 723, Feed Water Adapter with Ball Valve
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x HK120-P-TK for USA 110V / 60Hz
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x WS-150M, Whole House Water Softener
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x *Discontinued* RD150
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)

View Cart$13,322.64

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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