Log In Log In  |  Checkout   |  41 item(s)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x bulk205, Carbon Block Filter
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x bulk201, Sediment Filter
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x bulkic21, Koolermax Inline Carbon Filter
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x bulk818, DI resin refill bags Di-Ionization media
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x bulk213, Inline Carbon Filter
1 x CKV0402, Blue color Elbow Check Valve Elbow Type

View Cart$1,836.80
Specials Log InCreate Account Checkout  Shopping Cart41 item(s)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x bulk205, Carbon Block Filter
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x bulk201, Sediment Filter
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x bulkic21, Koolermax Inline Carbon Filter
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x bulk818, DI resin refill bags Di-Ionization media
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x bulk213, Inline Carbon Filter
1 x CKV0402, Blue color Elbow Check Valve Elbow Type

View Cart$1,836.80

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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