Log In Log In  |  Checkout   |  89 item(s)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
2 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x bulkc10, Koolermax Carbon Block Filter
5 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x KT-103, Optional Manual Membrane Flush Valve
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
4 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
4 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x bulkic21, Koolermax Inline Carbon Filter
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x *Discontinued* RD106
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish

View Cart$5,804.10
Specials Log InCreate Account Checkout  Shopping Cart89 item(s)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
2 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x bulkc10, Koolermax Carbon Block Filter
5 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x KT-103, Optional Manual Membrane Flush Valve
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
4 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
4 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x bulkic21, Koolermax Inline Carbon Filter
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x *Discontinued* RD106
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish

View Cart$5,804.10

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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