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1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 719, Drain Saddle Clamp / Valve
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 741-14, Diverter Valve for Countertop Water Units
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x *Discontinued* RO585A
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x *Discontinued* RO6ALK
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x *Discontinued* RD106
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI

View Cart$4,588.34
Specials Log InCreate Account Checkout  Shopping Cart87 item(s)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 719, Drain Saddle Clamp / Valve
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 741-14, Diverter Valve for Countertop Water Units
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x *Discontinued* RO585A
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x *Discontinued* RO6ALK
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x *Discontinued* RD106
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI

View Cart$4,588.34

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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