Log In Log In  |  Checkout   |  32 item(s)
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x bulk213, Inline Carbon Filter
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x *Discontinued* RO585ERP
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 720, Feed Water Adapter with Needle Valve
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x *Discontinued* RD106
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 752, DC Booster Pump w/ Transformer
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G

View Cart$1,484.64
Specials Log InCreate Account Checkout  Shopping Cart32 item(s)
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x bulk213, Inline Carbon Filter
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x *Discontinued* RO585ERP
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 720, Feed Water Adapter with Needle Valve
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x *Discontinued* RD106
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 752, DC Booster Pump w/ Transformer
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G

View Cart$1,484.64

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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