Log In Log In  |  Checkout   |  186 item(s)
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
2 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
3 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
8 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x *Discontinued* RD150
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 706, Membrane Filter Casing Housing Assembly
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
3 x 752, DC Booster Pump w/ Transformer
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x KT-103, Optional Manual Membrane Flush Valve
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FRQ200, Flow Restrictor 200ML / min
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
3 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 741-14, Diverter Valve for Countertop Water Units
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x EMT-10, Empty Filter Cartridge Casing Housing
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 720, Feed Water Adapter with Needle Valve
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 719, Drain Saddle Clamp / Valve
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x UU Clips Pair from Bracket to Membrane Filter
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x bulk205, Carbon Block Filter
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x *Discontinued* RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x bulk201, Sediment Filter
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
View Cart$7,451.12
Home
Specials Log InCreate Account Checkout  Shopping Cart186 item(s)
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
2 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
3 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
8 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x *Discontinued* RD150
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 706, Membrane Filter Casing Housing Assembly
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
3 x 752, DC Booster Pump w/ Transformer
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x KT-103, Optional Manual Membrane Flush Valve
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FRQ200, Flow Restrictor 200ML / min
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
3 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 741-14, Diverter Valve for Countertop Water Units
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x EMT-10, Empty Filter Cartridge Casing Housing
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 720, Feed Water Adapter with Needle Valve
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 719, Drain Saddle Clamp / Valve
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x UU Clips Pair from Bracket to Membrane Filter
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x bulk205, Carbon Block Filter
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x *Discontinued* RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x bulk201, Sediment Filter
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
View Cart$7,451.12

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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