Log In Log In  |  Checkout   |  87 item(s)
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x *Discontinued* RO155
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x HK120-P-TK for USA 110V / 60Hz
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 752, DC Booster Pump w/ Transformer
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x *Discontinued* RO155C
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x *Discontinued* RD150
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155

View Cart$5,232.10
Specials Log InCreate Account Checkout  Shopping Cart87 item(s)
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x *Discontinued* RO155
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x HK120-P-TK for USA 110V / 60Hz
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 752, DC Booster Pump w/ Transformer
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x *Discontinued* RO155C
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x *Discontinued* RD150
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155

View Cart$5,232.10

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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