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2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 719, Drain Saddle Clamp / Valve
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 741-14, Diverter Valve for Countertop Water Units
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x *Discontinued* RO155
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260

View Cart$2,171.39
Specials Log InCreate Account Checkout  Shopping Cart60 item(s)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 719, Drain Saddle Clamp / Valve
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 741-14, Diverter Valve for Countertop Water Units
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x *Discontinued* RO155
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260

View Cart$2,171.39

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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