Log In Log In  |  Checkout   |  179 item(s)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x MK420, Maintenance kit for RO565
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
4 x 752, DC Booster Pump w/ Transformer
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x *Discontinued* RO155
2 x 214, Clear Inline Filter Cartridge Empty Case
5 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
3 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
4 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
2 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
4 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x bulksf05, Koolermax Sediment Filter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 720, Feed Water Adapter with Needle Valve
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
2 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x FRQ850, Flow Restrictor 850ML / min
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x TMR-AQT-68, Transformer Power Supply Aquatec TACS114-19EP for 68
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x *Discontinued* RD106
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x bulkc10, Koolermax Carbon Block Filter
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x *Discontinued* RO585ERP
2 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET

View Cart$11,191.41
Specials Log InCreate Account Checkout  Shopping Cart179 item(s)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x MK420, Maintenance kit for RO565
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
4 x 752, DC Booster Pump w/ Transformer
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x *Discontinued* RO155
2 x 214, Clear Inline Filter Cartridge Empty Case
5 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
3 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
4 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
2 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
2 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
4 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x bulksf05, Koolermax Sediment Filter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 720, Feed Water Adapter with Needle Valve
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
3 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
2 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x FRQ850, Flow Restrictor 850ML / min
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x TMR-AQT-68, Transformer Power Supply Aquatec TACS114-19EP for 68
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x *Discontinued* RD106
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x bulkc10, Koolermax Carbon Block Filter
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 335, 3rd stage TFC 35/45 US membrane filter (every 2-3 yrs)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x *Discontinued* RO585ERP
2 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET

View Cart$11,191.41

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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