Log In Log In  |  Checkout   |  63 item(s)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 578, TDS Water Quality Meter tds-3
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 752, DC Booster Pump w/ Transformer
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x *Discontinued* RD106
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x Special Filter Kit Koolermax dealer distribution kit
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 565, Digital Pressure Gauge Tester Monitor
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug

View Cart$3,474.20
Specials Log InCreate Account Checkout  Shopping Cart63 item(s)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 578, TDS Water Quality Meter tds-3
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 752, DC Booster Pump w/ Transformer
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x *Discontinued* RD106
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x Special Filter Kit Koolermax dealer distribution kit
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 565, Digital Pressure Gauge Tester Monitor
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug

View Cart$3,474.20

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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