Log In Log In  |  Checkout   |  28 item(s)
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
2 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x bulk201, Sediment Filter
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x CKV0402, Blue color Elbow Check Valve Elbow Type

View Cart$977.00
Specials Log InCreate Account Checkout  Shopping Cart28 item(s)
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
2 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x bulk201, Sediment Filter
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x CKV0402, Blue color Elbow Check Valve Elbow Type

View Cart$977.00

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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