Log In Log In  |  Checkout   |  145 item(s)
1 x WT-bac, Water Testing Kit, Bacteria Test
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 565, Digital Pressure Gauge Tester Monitor
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x N-14-1M, Nipple Fitting connector between standard RO housing
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
5 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
4 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
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 K5150P
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
2 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 752, DC Booster Pump w/ Transformer
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
2 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 578, TDS Water Quality Meter tds-3
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H

View Cart$4,762.49
Specials Log InCreate Account Checkout  Shopping Cart145 item(s)
1 x WT-bac, Water Testing Kit, Bacteria Test
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 565, Digital Pressure Gauge Tester Monitor
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x N-14-1M, Nipple Fitting connector between standard RO housing
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
5 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
4 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
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 K5150P
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
2 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 752, DC Booster Pump w/ Transformer
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
2 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 578, TDS Water Quality Meter tds-3
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H

View Cart$4,762.49

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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