Log In Log In  |  Checkout   |  31 item(s)
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 205, 3rd stage solid carbon block filter (replace every 12month)

View Cart$1,928.00
Specials Log InCreate Account Checkout  Shopping Cart31 item(s)
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 205, 3rd stage solid carbon block filter (replace every 12month)

View Cart$1,928.00

ATU TEE Union Connector Quick Connect QC Fitting [ATU]

$3.50

ATU TEE Union Connector Quick Connect QC Fitting



* ATU TEE Union Connector, Quick Connect

* Please choose size from the selection box below. Both numbers are tubing OD Outside Diameter. First number is Tee double side and second number is the single side. (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 ATU0404
* 3/8" Tube OD x 1/4" Tube OD ATU0604
* 3/8" Tube OD x 3/8" Tube OD ATU0606
* 1/2" Tube OD x 3/8" Tube OD ATU0706
* 1/2" Tube OD x 1/2" Tube OD ATU0707


* 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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