Log In Log In  |  Checkout   |  109 item(s)
1 x 205, 5th stage final carbon filter
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x Special Filter Kit Koolermax dealer distribution kit
2 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
4 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FRQ200, Flow Restrictor 200ML / min
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 752, DC Booster Pump w/ Transformer
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
3 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
4 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 706, Membrane Filter Casing Housing Assembly
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x DB40, DI Resin Refill Bag for DI210, RD322
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x Parts, Ro Water System Installation Parts Bag 1/4"

View Cart$3,524.89
Specials Log InCreate Account Checkout  Shopping Cart109 item(s)
1 x 205, 5th stage final carbon filter
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x Special Filter Kit Koolermax dealer distribution kit
2 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
4 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FRQ200, Flow Restrictor 200ML / min
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 752, DC Booster Pump w/ Transformer
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
3 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
4 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 706, Membrane Filter Casing Housing Assembly
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x DB40, DI Resin Refill Bag for DI210, RD322
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x Parts, Ro Water System Installation Parts Bag 1/4"

View Cart$3,524.89

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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