Log In Log In  |  Checkout   |  26 item(s)
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better

View Cart$1,179.40
Specials Log InCreate Account Checkout  Shopping Cart26 item(s)
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better

View Cart$1,179.40

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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