Log In Log In  |  Checkout   |  164 item(s)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
2 x 741-14, Diverter Valve for Countertop Water Units
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
6 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x 578, TDS Water Quality Meter tds-3
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x *Discontinued* RO585NTF
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x *Discontinued* RD106
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
2 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x *Discontinued* RO585A
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 565, Digital Pressure Gauge Tester Monitor
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x KT-103, Optional Manual Membrane Flush Valve
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 719, Drain Saddle Clamp / Valve
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK420, Maintenance kit for RO565
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 720, Feed Water Adapter with Needle Valve
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
View Cart$7,316.75
Home
Specials Log InCreate Account Checkout  Shopping Cart164 item(s)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
2 x 741-14, Diverter Valve for Countertop Water Units
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
6 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x 578, TDS Water Quality Meter tds-3
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x *Discontinued* RO585NTF
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x *Discontinued* RD106
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
2 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x *Discontinued* RO585A
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 565, Digital Pressure Gauge Tester Monitor
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x KT-103, Optional Manual Membrane Flush Valve
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 719, Drain Saddle Clamp / Valve
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK420, Maintenance kit for RO565
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 720, Feed Water Adapter with Needle Valve
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
View Cart$7,316.75

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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