Log In Log In  |  Checkout   |  42 item(s)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 723, Feed Water Adapter with Ball Valve
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x bulkic21, Koolermax Inline Carbon Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System

View Cart$4,914.88
Specials Log InCreate Account Checkout  Shopping Cart42 item(s)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 723, Feed Water Adapter with Ball Valve
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x bulkic21, Koolermax Inline Carbon Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System

View Cart$4,914.88

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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