Log In Log In  |  Checkout   |  56 item(s)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x *Discontinued* RO585
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 719, Drain Saddle Clamp / Valve
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FRQ200, Flow Restrictor 200ML / min
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x FRQ850, Flow Restrictor 850ML / min
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 723, Feed Water Adapter with Ball Valve
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 706, Membrane Filter Casing Housing Assembly
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 720, Feed Water Adapter with Needle Valve
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube

View Cart$2,236.54
Specials Log InCreate Account Checkout  Shopping Cart56 item(s)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x *Discontinued* RO585
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 719, Drain Saddle Clamp / Valve
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FRQ200, Flow Restrictor 200ML / min
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x FRQ850, Flow Restrictor 850ML / min
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 723, Feed Water Adapter with Ball Valve
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 706, Membrane Filter Casing Housing Assembly
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 720, Feed Water Adapter with Needle Valve
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube

View Cart$2,236.54

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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