Log In Log In  |  Checkout   |  110 item(s)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FRQ420, Flow Restrictor 420ML / min
1 x *Discontinued* RO585
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x FRQ550, Flow Restrictor 500 to 600ML / min
2 x bulk201, Sediment Filter
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x *Discontinued* RO155
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x bulk205, Carbon Block Filter
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
2 x KT-103, Optional Manual Membrane Flush Valve
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
3 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x bulksf05, Koolermax Sediment Filter
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC

View Cart$5,096.19
Specials Log InCreate Account Checkout  Shopping Cart110 item(s)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FRQ420, Flow Restrictor 420ML / min
1 x *Discontinued* RO585
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x FRQ550, Flow Restrictor 500 to 600ML / min
2 x bulk201, Sediment Filter
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x *Discontinued* RO155
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x bulk205, Carbon Block Filter
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
2 x KT-103, Optional Manual Membrane Flush Valve
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
3 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x bulksf05, Koolermax Sediment Filter
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC

View Cart$5,096.19

AEU, Elbow Union Connector OD Quick Connect QC Fitting [AEU]

$3.00

AEU, Elbow Union Connector OD Quick Connect QC Fitting



* AEU, Elbow Union Connector TUBE OD w/ QC Quick Connect Fitting

* Please choose size from the selection box below. Both numbers are tubing 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" Tube OD AEU0404
* 3/8" Tube OD x 1/4" Tube OD AEU0604
* 3/8" Tube OD x 3/8" Tube OD AEU0606
* 1/2" Tube OD x 1/4" Tube OD AEU0704
* 1/2" Tube OD x 3/8" Tube OD AEU0706
* 1/2" Tube OD x 1/2" Tube OD AEU0707


* 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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