Log In Log In  |  Checkout   |  31 item(s)
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x FRQ420, Flow Restrictor 420ML / min
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch

View Cart$1,289.45
Specials Log InCreate Account Checkout  Shopping Cart31 item(s)
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x FRQ420, Flow Restrictor 420ML / min
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch

View Cart$1,289.45

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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