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3 x Parts, Ro Water System Installation Parts Bag 1/4"
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 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x MKP, Maintenance kit for K5150P K6150P AR150P
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
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 AR122
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 752, DC Booster Pump w/ Transformer
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P

View Cart$2,421.34
Specials Log InCreate Account Checkout  Shopping Cart53 item(s)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
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 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x MKP, Maintenance kit for K5150P K6150P AR150P
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
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 AR122
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 752, DC Booster Pump w/ Transformer
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P

View Cart$2,421.34

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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