Log In Log In  |  Checkout   |  52 item(s)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x *Discontinued* RO585A
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x *Discontinued* RO585ERP
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x *Discontinued* RD106
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G

View Cart$4,201.49
Specials Log InCreate Account Checkout  Shopping Cart52 item(s)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x *Discontinued* RO585A
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x *Discontinued* RO585ERP
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x *Discontinued* RD106
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G

View Cart$4,201.49

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:

Reviews

 Customers who bought this product also purchased

Home  |   Specials  |   Log In  |   Create Account  |   Checkout  |   Shopping Cart