Log In Log In  |  Checkout   |  134 item(s)
1 x 719, Drain Saddle Clamp / Valve
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x *Discontinued* RD102
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x DI210, Heavy-duty DI system for Aquarium and Reef
4 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x MK420, Maintenance kit for RO565
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
2 x FRQ200, Flow Restrictor 200ML / min
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
3 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x 578, TDS Water Quality Meter tds-3
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x HK120-P-TK for USA 110V / 60Hz
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
2 x KT-103, Optional Manual Membrane Flush Valve
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x FRQ420, Flow Restrictor 420ML / min
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x *Discontinued* RD150
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x *Discontinued* RO585ERP
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x *Discontinued* RO585NTF
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x *Discontinued* RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 310, 2nd stage CTA 10 US Membrane filter
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"

View Cart$5,106.58
Specials Log InCreate Account Checkout  Shopping Cart134 item(s)
1 x 719, Drain Saddle Clamp / Valve
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x *Discontinued* RD102
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x DI210, Heavy-duty DI system for Aquarium and Reef
4 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x MK420, Maintenance kit for RO565
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
2 x FRQ200, Flow Restrictor 200ML / min
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
3 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x 578, TDS Water Quality Meter tds-3
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x HK120-P-TK for USA 110V / 60Hz
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
2 x KT-103, Optional Manual Membrane Flush Valve
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x FRQ420, Flow Restrictor 420ML / min
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x *Discontinued* RD150
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x *Discontinued* RO585ERP
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x *Discontinued* RO585NTF
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x *Discontinued* RO155
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 310, 2nd stage CTA 10 US Membrane filter
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"

View Cart$5,106.58

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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