Log In Log In  |  Checkout   |  26 item(s)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)

View Cart$1,398.50
Specials Log InCreate Account Checkout  Shopping Cart26 item(s)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)

View Cart$1,398.50

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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