Log In Log In  |  Checkout   |  88 item(s)
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x WS-150M, Whole House Water Softener
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 706, Membrane Filter Casing Housing Assembly
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x 752, DC Booster Pump w/ Transformer
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x KT-103, Optional Manual Membrane Flush Valve
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 578, TDS Water Quality Meter tds-3
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)

View Cart$9,187.57
Specials Log InCreate Account Checkout  Shopping Cart88 item(s)
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x WS-150M, Whole House Water Softener
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 706, Membrane Filter Casing Housing Assembly
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x 752, DC Booster Pump w/ Transformer
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x KT-103, Optional Manual Membrane Flush Valve
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 578, TDS Water Quality Meter tds-3
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)

View Cart$9,187.57

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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