Log In Log In  |  Checkout   |  31 item(s)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x HK120-P-TK for USA 110V / 60Hz
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 706, Membrane Filter Casing Housing Assembly
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 205 2nd stage solid carbon block filter (replace every 12 month)

View Cart$1,753.14
Specials Log InCreate Account Checkout  Shopping Cart31 item(s)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x HK120-P-TK for USA 110V / 60Hz
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 706, Membrane Filter Casing Housing Assembly
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 205 2nd stage solid carbon block filter (replace every 12 month)

View Cart$1,753.14

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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