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2 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 310, 2nd stage CTA 10 US Membrane filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 205, 2nd stage carbon block filter (replace every 12 months)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
5 x Parts, Ro Water System Installation Parts Bag 1/4"
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x bulkc10, Koolermax Carbon Block Filter
4 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x bulk818, DI resin refill bags Di-Ionization media
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x 706, Membrane Filter Casing Housing Assembly
1 x bulk205, Carbon Block Filter
1 x bulksf05, Koolermax Sediment Filter
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x CBV-38, Tank Ball Valve to 3/8 tubing

View Cart$5,386.95
Specials Log InCreate Account Checkout  Shopping Cart94 item(s)
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 310, 2nd stage CTA 10 US Membrane filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 205, 2nd stage carbon block filter (replace every 12 months)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
5 x Parts, Ro Water System Installation Parts Bag 1/4"
3 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x bulkc10, Koolermax Carbon Block Filter
4 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x bulk818, DI resin refill bags Di-Ionization media
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x 706, Membrane Filter Casing Housing Assembly
1 x bulk205, Carbon Block Filter
1 x bulksf05, Koolermax Sediment Filter
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x CBV-38, Tank Ball Valve to 3/8 tubing

View Cart$5,386.95

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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