Log In Log In  |  Checkout   |  42 item(s)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x *Discontinued* RO155
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 720, Feed Water Adapter with Needle Valve
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 723, Feed Water Adapter with Ball Valve
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x *Discontinued* RO155C
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)

View Cart$1,787.38
Specials Log InCreate Account Checkout  Shopping Cart42 item(s)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x *Discontinued* RO155
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 720, Feed Water Adapter with Needle Valve
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 723, Feed Water Adapter with Ball Valve
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x *Discontinued* RO155C
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)

View Cart$1,787.38

ATEU, Tube Elbow Union Connector Fitting Tube OD Stem OD [ATEU]

$3.00

ATEU, Tube Elbow Union Connector Fitting Tube OD Stem OD



* ATEU, Tube Elbow Union Fitting Tube OD - Stem OD

* Please choose size from the selection box below. First number is tubing OD and second number is Stem OD Outside Diameter (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" Stem OD ATEU0404
* 1/4" Tube OD x 3/8" Stem OD ATEU0406
* 3/8" Tube OD x 3/8" Stem OD ATEU0606
* 3/8" Tube OD x 1/2" Stem OD ATEU0607
* 1/2" Tube OD x 1/2" Stem OD ATEU0707


* 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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