Log In Log In  |  Checkout   |  27 item(s)
1 x 720, Feed Water Adapter with Needle Valve
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 752, DC Booster Pump w/ Transformer
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x FRQ850, Flow Restrictor 850ML / min
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x *Discontinued* RO155C
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 201, 1st stage sediment filter (replace every 6-12 months)

View Cart$1,065.94
Specials Log InCreate Account Checkout  Shopping Cart27 item(s)
1 x 720, Feed Water Adapter with Needle Valve
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 752, DC Booster Pump w/ Transformer
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x FRQ850, Flow Restrictor 850ML / min
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x *Discontinued* RO155C
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 201, 1st stage sediment filter (replace every 6-12 months)

View Cart$1,065.94

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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