Log In Log In  |  Checkout   |  39 item(s)
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x bulksf05, Koolermax Sediment Filter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank

View Cart$1,855.35
Specials Log InCreate Account Checkout  Shopping Cart39 item(s)
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x bulksf05, Koolermax Sediment Filter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank

View Cart$1,855.35

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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