Log In Log In  |  Checkout   |  106 item(s)
1 x 720, Feed Water Adapter with Needle Valve
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 719, Drain Saddle Clamp / Valve
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 741-14, Diverter Valve for Countertop Water Units
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 723, Feed Water Adapter with Ball Valve
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x KT-103, Optional Manual Membrane Flush Valve
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x MK420, Maintenance kit for RO565
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x WT-bac, Water Testing Kit, Bacteria Test
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
2 x 214, Clear Inline Filter Cartridge Empty Case
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x FRQ300, Flow Restrictor 300ML / min
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter

View Cart$2,401.98
Specials Log InCreate Account Checkout  Shopping Cart106 item(s)
1 x 720, Feed Water Adapter with Needle Valve
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 719, Drain Saddle Clamp / Valve
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 741-14, Diverter Valve for Countertop Water Units
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 723, Feed Water Adapter with Ball Valve
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x KT-103, Optional Manual Membrane Flush Valve
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x MK420, Maintenance kit for RO565
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x WT-bac, Water Testing Kit, Bacteria Test
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
2 x 214, Clear Inline Filter Cartridge Empty Case
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x FRQ300, Flow Restrictor 300ML / min
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter

View Cart$2,401.98

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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