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1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 741-14, Diverter Valve for Countertop Water Units
1 x *Discontinued* RO585ERP
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x *Discontinued* RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 706, Membrane Filter Casing Housing Assembly

View Cart$2,065.49
Specials Log InCreate Account Checkout  Shopping Cart48 item(s)
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 741-14, Diverter Valve for Countertop Water Units
1 x *Discontinued* RO585ERP
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x *Discontinued* RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 706, Membrane Filter Casing Housing Assembly

View Cart$2,065.49

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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