Log In Log In  |  Checkout   |  54 item(s)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 205, 3rd stage solid carbon block filter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 723, Feed Water Adapter with Ball Valve
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
3 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x WS-150M, Whole House Water Softener
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x 706, Membrane Filter Casing Housing Assembly
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x Parts, Ro Water System Installation Parts Bag 1/4"
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)

View Cart$5,087.95
Specials Log InCreate Account Checkout  Shopping Cart54 item(s)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 205, 3rd stage solid carbon block filter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 723, Feed Water Adapter with Ball Valve
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
3 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x WS-150M, Whole House Water Softener
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x 706, Membrane Filter Casing Housing Assembly
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x Parts, Ro Water System Installation Parts Bag 1/4"
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)

View Cart$5,087.95

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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