Log In Log In  |  Checkout   |  138 item(s)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
4 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x bulk205, Carbon Block Filter
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x bulk818, DI resin refill bags Di-Ionization media
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
4 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x KT-103, Optional Manual Membrane Flush Valve
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x bulksf05, Koolermax Sediment Filter
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
2 x 706, Membrane Filter Casing Housing Assembly
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 741-38, Diverter Valve for RO DI Water Systems
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 578, TDS Water Quality Meter tds-3
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 565, Digital Pressure Gauge Tester Monitor
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 752, DC Booster Pump w/ Transformer
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134

View Cart$5,634.09
Specials Log InCreate Account Checkout  Shopping Cart138 item(s)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
4 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x bulk205, Carbon Block Filter
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x bulk818, DI resin refill bags Di-Ionization media
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
4 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x KT-103, Optional Manual Membrane Flush Valve
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x bulksf05, Koolermax Sediment Filter
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
2 x 706, Membrane Filter Casing Housing Assembly
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 741-38, Diverter Valve for RO DI Water Systems
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 578, TDS Water Quality Meter tds-3
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 565, Digital Pressure Gauge Tester Monitor
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 752, DC Booster Pump w/ Transformer
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134

View Cart$5,634.09

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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