Log In Log In  |  Checkout   |  33 item(s)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 752, DC Booster Pump w/ Transformer
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x KT-103, Optional Manual Membrane Flush Valve
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump

View Cart$2,202.45
Specials Log InCreate Account Checkout  Shopping Cart33 item(s)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 752, DC Booster Pump w/ Transformer
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x KT-103, Optional Manual Membrane Flush Valve
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump

View Cart$2,202.45

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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