Log In Log In  |  Checkout   |  37 item(s)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x HK120-P-TK for USA 110V / 60Hz
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x UU Clips Pair from Bracket to Membrane Filter
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x 752, DC Booster Pump w/ Transformer
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish

View Cart$1,996.75
Specials Log InCreate Account Checkout  Shopping Cart37 item(s)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x HK120-P-TK for USA 110V / 60Hz
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x UU Clips Pair from Bracket to Membrane Filter
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x 752, DC Booster Pump w/ Transformer
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish

View Cart$1,996.75

ARD, Reducer Fitting Straight Tube OD Stem OD [ARD]

$3.50

ARD, Reducer Fitting Straight Tube OD Stem OD



* ARD, Reducer Fitting Straight Tube OD Stem OD

* Please choose size from the selection box below. First number is tubing OD and second number is Stem 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 3/8" Stem OD ARD0406
* 3/8" Tube OD x 1/2" Stem OD ARD0607


* 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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