Log In Log In  |  Checkout   |  30 item(s)
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x UU Clips Pair from Bracket to Membrane Filter
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill

View Cart$972.50
Specials Log InCreate Account Checkout  Shopping Cart30 item(s)
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x UU Clips Pair from Bracket to Membrane Filter
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill

View Cart$972.50

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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