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1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x *Discontinued* RD102
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Special Filter Kit Koolermax dealer distribution kit
2 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x *Discontinued* RD106
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 752, DC Booster Pump w/ Transformer
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x *Discontinued* RD150

View Cart$5,030.79
Specials Log InCreate Account Checkout  Shopping Cart110 item(s)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
2 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x *Discontinued* RD102
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Special Filter Kit Koolermax dealer distribution kit
2 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x *Discontinued* RD106
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 752, DC Booster Pump w/ Transformer
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x *Discontinued* RD150

View Cart$5,030.79

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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