Log In Log In  |  Checkout   |  24 item(s)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x *Discontinued* RD106
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting

View Cart$1,143.99
Specials Log InCreate Account Checkout  Shopping Cart24 item(s)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x *Discontinued* RD106
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting

View Cart$1,143.99

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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