Log In Log In  |  Checkout   |  42 item(s)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x WS-150M, Whole House Water Softener
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 706, Membrane Filter Casing Housing Assembly
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Dispense
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 565, Digital Pressure Gauge Tester Monitor
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1

View Cart$4,287.40
Specials Log InCreate Account Checkout  Shopping Cart42 item(s)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x WS-150M, Whole House Water Softener
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 706, Membrane Filter Casing Housing Assembly
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Dispense
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 565, Digital Pressure Gauge Tester Monitor
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1

View Cart$4,287.40

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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