Log In Log In  |  Checkout   |  37 item(s)
1 x FRQ850, Flow Restrictor 850ML / min
1 x FRQ200, Flow Restrictor 200ML / min
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 752, DC Booster Pump w/ Transformer
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FRQ420, Flow Restrictor 420ML / min
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)

View Cart$657.89
Specials Log InCreate Account Checkout  Shopping Cart37 item(s)
1 x FRQ850, Flow Restrictor 850ML / min
1 x FRQ200, Flow Restrictor 200ML / min
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 752, DC Booster Pump w/ Transformer
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FRQ420, Flow Restrictor 420ML / min
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)

View Cart$657.89

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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