Log In Log In  |  Checkout   |  65 item(s)
1 x HK120-P-TK for USA 110V / 60Hz
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x FRQ300, Flow Restrictor 300ML / min
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 752, DC Booster Pump w/ Transformer
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 565, Digital Pressure Gauge Tester Monitor
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 723, Feed Water Adapter with Ball Valve
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 720, Feed Water Adapter with Needle Valve
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x *Discontinued* RO155
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
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 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x DB40, DI Resin Refill Bag for DI210, RD322

View Cart$3,451.30
Specials Log InCreate Account Checkout  Shopping Cart65 item(s)
1 x HK120-P-TK for USA 110V / 60Hz
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x FRQ300, Flow Restrictor 300ML / min
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 752, DC Booster Pump w/ Transformer
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 565, Digital Pressure Gauge Tester Monitor
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 723, Feed Water Adapter with Ball Valve
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 720, Feed Water Adapter with Needle Valve
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x *Discontinued* RO155
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
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 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x DB40, DI Resin Refill Bag for DI210, RD322

View Cart$3,451.30

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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