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2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x WS-150M, Whole House Water Softener
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x FRQ420, Flow Restrictor 420ML / min
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x *Discontinued* RD106
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 741-14, Diverter Valve for Countertop Water Units
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
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 Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 719, Drain Saddle Clamp / Valve
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type

View Cart$6,073.29
Specials Log InCreate Account Checkout  Shopping Cart92 item(s)
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x WS-150M, Whole House Water Softener
3 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x FRQ420, Flow Restrictor 420ML / min
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x *Discontinued* RD106
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 741-14, Diverter Valve for Countertop Water Units
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
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 Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 719, Drain Saddle Clamp / Valve
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type

View Cart$6,073.29

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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