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1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
2 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 741-14, Diverter Valve for Countertop Water Units
2 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x 565, Digital Pressure Gauge Tester Monitor
2 x 752, DC Booster Pump w/ Transformer
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x WT-bac, Water Testing Kit, Bacteria Test
2 x 578, TDS Water Quality Meter tds-3
2 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x UU Clips Pair from Bracket to Membrane Filter
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x KT-103, Optional Manual Membrane Flush Valve
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
2 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 706, Membrane Filter Casing Housing Assembly
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FRQ300, Flow Restrictor 300ML / min
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Filter,
1 x 723, Feed Water Adapter with Ball Valve
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 719, Drain Saddle Clamp / Valve
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All

View Cart$3,702.90
Specials Log InCreate Account Checkout  Shopping Cart111 item(s)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
2 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 741-14, Diverter Valve for Countertop Water Units
2 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x 565, Digital Pressure Gauge Tester Monitor
2 x 752, DC Booster Pump w/ Transformer
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x WT-bac, Water Testing Kit, Bacteria Test
2 x 578, TDS Water Quality Meter tds-3
2 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x UU Clips Pair from Bracket to Membrane Filter
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x KT-103, Optional Manual Membrane Flush Valve
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
2 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 706, Membrane Filter Casing Housing Assembly
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FRQ300, Flow Restrictor 300ML / min
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Filter,
1 x 723, Feed Water Adapter with Ball Valve
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 719, Drain Saddle Clamp / Valve
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All

View Cart$3,702.90

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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