Log In Log In  |  Checkout   |  163 item(s)
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
2 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
3 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
5 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 913, 5th stage inline carbon filter (every 12 months)
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x WSACF-150T, Whole House Water Treatment ACF-150T
2 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
4 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x WS-150M, Whole House Water Softener
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x KT-103, Optional Manual Membrane Flush Valve
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x *Discontinued* RD150
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
5 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 578, TDS Water Quality Meter tds-3
1 x bulk213, Inline Carbon Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x EMT-10, Empty Filter Cartridge Casing Housing
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x *Discontinued* RO585NTF
1 x bulk205, Carbon Block Filter
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 723, Feed Water Adapter with Ball Valve
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
3 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x *Discontinued* RO6ALK
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x UU Clips Pair from Bracket to Membrane Filter
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 205, 5th stage final carbon filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x *Discontinued* RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x *Discontinued* RO585A
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 565, Digital Pressure Gauge Tester Monitor

View Cart$12,901.12
Specials Log InCreate Account Checkout  Shopping Cart163 item(s)
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
2 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
3 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
5 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 913, 5th stage inline carbon filter (every 12 months)
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x WSACF-150T, Whole House Water Treatment ACF-150T
2 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
4 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x WS-150M, Whole House Water Softener
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x KT-103, Optional Manual Membrane Flush Valve
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x *Discontinued* RD150
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
5 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 578, TDS Water Quality Meter tds-3
1 x bulk213, Inline Carbon Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x EMT-10, Empty Filter Cartridge Casing Housing
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x *Discontinued* RO585NTF
1 x bulk205, Carbon Block Filter
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 723, Feed Water Adapter with Ball Valve
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
3 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x *Discontinued* RO6ALK
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x UU Clips Pair from Bracket to Membrane Filter
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 205, 5th stage final carbon filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x *Discontinued* RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x *Discontinued* RO585A
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 565, Digital Pressure Gauge Tester Monitor

View Cart$12,901.12

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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