Log In Log In  |  Checkout   |  253 item(s)
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
5 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x MKP, Maintenance kit for K5150P K6150P AR150P
5 x 1st stage SF05 sediment filter (replace every 6-12 months)
9 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
10 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
4 x 3rd stage C10 carbon block filter (replace every 6-12 months)
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
5 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
5 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
5 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
5 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205, 5th stage final carbon filter
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x 201, 1st stage sediment filter (replace every 6-12 months)
5 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
8 x Optional: 564 Membrane Filter Housing Wrench Opener
7 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 752, DC Booster Pump w/ Transformer
4 x 2nd stage C10 carbon block filter (replace every 6-12 months)
5 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x KT-103, Optional Manual Membrane Flush Valve
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
2 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x Special, Single Stage Housing Bracket Shell Connection Kit
2 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 723, Feed Water Adapter with Ball Valve
4 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
2 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
5 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
2 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x Special Filter Kit Koolermax dealer distribution kit
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
2 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 741-14, Diverter Valve for Countertop Water Units
2 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x *Discontinued* RD106
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 706, Membrane Filter Casing Housing Assembly
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 719, Drain Saddle Clamp / Valve
1 x *Discontinued* RD102
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155

View Cart$11,798.59
Specials Log InCreate Account Checkout  Shopping Cart253 item(s)
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
5 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x MKP, Maintenance kit for K5150P K6150P AR150P
5 x 1st stage SF05 sediment filter (replace every 6-12 months)
9 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
10 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
4 x 3rd stage C10 carbon block filter (replace every 6-12 months)
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
5 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
5 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
5 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
5 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205, 5th stage final carbon filter
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x 201, 1st stage sediment filter (replace every 6-12 months)
5 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
8 x Optional: 564 Membrane Filter Housing Wrench Opener
7 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 752, DC Booster Pump w/ Transformer
4 x 2nd stage C10 carbon block filter (replace every 6-12 months)
5 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x KT-103, Optional Manual Membrane Flush Valve
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
2 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x Special, Single Stage Housing Bracket Shell Connection Kit
2 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 723, Feed Water Adapter with Ball Valve
4 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
2 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
5 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
2 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x Special Filter Kit Koolermax dealer distribution kit
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
2 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 741-14, Diverter Valve for Countertop Water Units
2 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x *Discontinued* RD106
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 706, Membrane Filter Casing Housing Assembly
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 719, Drain Saddle Clamp / Valve
1 x *Discontinued* RD102
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155

View Cart$11,798.59

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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