Log In Log In  |  Checkout   |  88 item(s)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 723, Feed Water Adapter with Ball Valve
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 578, TDS Water Quality Meter tds-3
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x KT-103, Optional Manual Membrane Flush Valve
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
2 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
3 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
3 x 752, DC Booster Pump w/ Transformer
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
2 x 720, Feed Water Adapter with Needle Valve
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x FRQ850, Flow Restrictor 850ML / min
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 719, Drain Saddle Clamp / Valve
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x MKP, Maintenance kit for K5150P K6150P AR150P

View Cart$2,979.39
Specials Log InCreate Account Checkout  Shopping Cart88 item(s)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 723, Feed Water Adapter with Ball Valve
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 578, TDS Water Quality Meter tds-3
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x KT-103, Optional Manual Membrane Flush Valve
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
2 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
3 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
3 x 752, DC Booster Pump w/ Transformer
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
2 x 720, Feed Water Adapter with Needle Valve
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x FRQ850, Flow Restrictor 850ML / min
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 719, Drain Saddle Clamp / Valve
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x MKP, Maintenance kit for K5150P K6150P AR150P

View Cart$2,979.39

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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