Log In Log In  |  Checkout   |  54 item(s)
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Filter,
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x N-14-1M, Nipple Fitting connector between standard RO housing
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 720, Feed Water Adapter with Needle Valve
1 x FRQ850, Flow Restrictor 850ML / min
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FRQ300, Flow Restrictor 300ML / min
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet

View Cart$1,234.59
Specials Log InCreate Account Checkout  Shopping Cart54 item(s)
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Filter,
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x N-14-1M, Nipple Fitting connector between standard RO housing
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 720, Feed Water Adapter with Needle Valve
1 x FRQ850, Flow Restrictor 850ML / min
1 x 741-14, Diverter Valve for Countertop Water Units
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FRQ300, Flow Restrictor 300ML / min
2 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet

View Cart$1,234.59

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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