Log In Log In  |  Checkout   |  65 item(s)
2 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
3 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 752, DC Booster Pump w/ Transformer
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$4,562.45
Specials Log InCreate Account Checkout  Shopping Cart65 item(s)
2 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
3 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 752, DC Booster Pump w/ Transformer
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$4,562.45

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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