Log In Log In  |  Checkout   |  53 item(s)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 310, 2nd stage CTA 10 US Membrane filter
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch

View Cart$1,486.00
Specials Log InCreate Account Checkout  Shopping Cart53 item(s)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 310, 2nd stage CTA 10 US Membrane filter
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch

View Cart$1,486.00

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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