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1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
2 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
2 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
2 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 720, Feed Water Adapter with Needle Valve
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 K6150P
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
2 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
2 x 741-14, Diverter Valve for Countertop Water Units
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 723, Feed Water Adapter with Ball Valve
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x 752, DC Booster Pump w/ Transformer
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
2 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 578, TDS Water Quality Meter tds-3
2 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x TMR-AQT-68, Transformer Power Supply Aquatec TACS114-19EP for 68
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 719, Drain Saddle Clamp / Valve
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)

View Cart$3,987.04
Specials Log InCreate Account Checkout  Shopping Cart112 item(s)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
2 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
2 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
2 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 720, Feed Water Adapter with Needle Valve
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 K6150P
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
2 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
2 x 741-14, Diverter Valve for Countertop Water Units
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 723, Feed Water Adapter with Ball Valve
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x 752, DC Booster Pump w/ Transformer
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
2 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 578, TDS Water Quality Meter tds-3
2 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x TMR-AQT-68, Transformer Power Supply Aquatec TACS114-19EP for 68
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 719, Drain Saddle Clamp / Valve
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)

View Cart$3,987.04

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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