Log In Log In  |  Checkout   |  51 item(s)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)

View Cart$1,348.69
Specials Log InCreate Account Checkout  Shopping Cart51 item(s)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)

View Cart$1,348.69

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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