Log In Log In  |  Checkout   |  27 item(s)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x MKP, Maintenance kit for K5150P K6150P AR150P
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 752, DC Booster Pump w/ Transformer
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK

View Cart$3,883.98
Specials Log InCreate Account Checkout  Shopping Cart27 item(s)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x MKP, Maintenance kit for K5150P K6150P AR150P
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 752, DC Booster Pump w/ Transformer
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK

View Cart$3,883.98

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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