Log In Log In  |  Checkout   |  25 item(s)
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 752, DC Booster Pump w/ Transformer
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"

View Cart$1,089.94
Specials Log InCreate Account Checkout  Shopping Cart25 item(s)
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 752, DC Booster Pump w/ Transformer
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"

View Cart$1,089.94

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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