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3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x *Discontinued* RO155
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x bulkc10, Koolermax Carbon Block Filter
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x 723, Feed Water Adapter with Ball Valve
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x bulksf05, Koolermax Sediment Filter
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter

View Cart$2,624.90
Specials Log InCreate Account Checkout  Shopping Cart64 item(s)
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x *Discontinued* RO155
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x bulkc10, Koolermax Carbon Block Filter
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
2 x 723, Feed Water Adapter with Ball Valve
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x bulksf05, Koolermax Sediment Filter
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter

View Cart$2,624.90

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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