Log In Log In  |  Checkout   |  72 item(s)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x *Discontinued* RD106
1 x 752, DC Booster Pump w/ Transformer
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x FRQ850, Flow Restrictor 850ML / min
4 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 578, TDS Water Quality Meter tds-3
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x 723, Feed Water Adapter with Ball Valve
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x *Discontinued* RO155
1 x *Discontinued* RO585ERP
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x HK120-P-TK for USA 110V / 60Hz
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE

View Cart$6,329.39
Specials Log InCreate Account Checkout  Shopping Cart72 item(s)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x *Discontinued* RD106
1 x 752, DC Booster Pump w/ Transformer
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x FRQ850, Flow Restrictor 850ML / min
4 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 578, TDS Water Quality Meter tds-3
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x 723, Feed Water Adapter with Ball Valve
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x *Discontinued* RO155
1 x *Discontinued* RO585ERP
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x HK120-P-TK for USA 110V / 60Hz
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE

View Cart$6,329.39

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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