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1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 752, DC Booster Pump w/ Transformer
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM

View Cart$2,171.27
Specials Log InCreate Account Checkout  Shopping Cart50 item(s)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 752, DC Booster Pump w/ Transformer
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM

View Cart$2,171.27

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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