Log In Log In  |  Checkout   |  90 item(s)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x bulk205, Carbon Block Filter
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x WS-150M, Whole House Water Softener
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 213, 4th stage inline carbon filter (replace every 12 months)
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x *Discontinued* RD106
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 741-14, Diverter Valve for Countertop Water Units
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x FRQ420, Flow Restrictor 420ML / min
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
View Cart$7,963.80
Home
Specials Log InCreate Account Checkout  Shopping Cart90 item(s)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x bulk205, Carbon Block Filter
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x WS-150M, Whole House Water Softener
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 213, 4th stage inline carbon filter (replace every 12 months)
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x *Discontinued* RD106
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 741-14, Diverter Valve for Countertop Water Units
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x FRQ420, Flow Restrictor 420ML / min
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
View Cart$7,963.80

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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