Log In Log In  |  Checkout   |  89 item(s)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
2 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x bulkc10, Koolermax Carbon Block Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x bulk201, Sediment Filter
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 205, 2nd stage carbon block filter (replace every 12 months)
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 723, Feed Water Adapter with Ball Valve
2 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x KT-103, Optional Manual Membrane Flush Valve
1 x *Discontinued* RO155C
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x bulkic21, Koolermax Inline Carbon Filter
1 x 720, Feed Water Adapter with Needle Valve
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better

View Cart$3,388.65
Specials Log InCreate Account Checkout  Shopping Cart89 item(s)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
2 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x bulkc10, Koolermax Carbon Block Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x bulk201, Sediment Filter
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 205, 2nd stage carbon block filter (replace every 12 months)
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 723, Feed Water Adapter with Ball Valve
2 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x KT-103, Optional Manual Membrane Flush Valve
1 x *Discontinued* RO155C
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x bulkic21, Koolermax Inline Carbon Filter
1 x 720, Feed Water Adapter with Needle Valve
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better

View Cart$3,388.65

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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