Log In Log In  |  Checkout   |  31 item(s)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT

View Cart$1,075.82
Specials Log InCreate Account Checkout  Shopping Cart31 item(s)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT

View Cart$1,075.82

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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