Log In Log In  |  Checkout   |  51 item(s)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 723, Feed Water Adapter with Ball Valve
1 x 205, 5th stage final carbon filter
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Dispense
1 x 310, 2nd stage CTA 10 US Membrane filter (every 2-3 yrs)
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 752, DC Booster Pump w/ Transformer
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x 741-14, Diverter Valve for Countertop Water Units
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 720, Feed Water Adapter with Needle Valve
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better

View Cart$3,160.45
Specials Log InCreate Account Checkout  Shopping Cart51 item(s)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 723, Feed Water Adapter with Ball Valve
1 x 205, 5th stage final carbon filter
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Dispense
1 x 310, 2nd stage CTA 10 US Membrane filter (every 2-3 yrs)
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 752, DC Booster Pump w/ Transformer
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x 741-14, Diverter Valve for Countertop Water Units
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 720, Feed Water Adapter with Needle Valve
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better

View Cart$3,160.45

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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