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2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 723, Feed Water Adapter with Ball Valve
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x HK120-P-TK for USA 110V / 60Hz
1 x *Discontinued* RO155C
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x *Discontinued* RO155
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x FRQ200, Flow Restrictor 200ML / min
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 752, DC Booster Pump w/ Transformer
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)

View Cart$3,745.40
Specials Log InCreate Account Checkout  Shopping Cart83 item(s)
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 723, Feed Water Adapter with Ball Valve
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x HK120-P-TK for USA 110V / 60Hz
1 x *Discontinued* RO155C
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x *Discontinued* RO155
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x FRQ200, Flow Restrictor 200ML / min
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 752, DC Booster Pump w/ Transformer
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)

View Cart$3,745.40

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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