Log In Log In  |  Checkout   |  36 item(s)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 205, 5th stage final carbon filter
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 706, Membrane Filter Casing Housing Assembly
1 x HK120-P-TK for USA 110V / 60Hz
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122

View Cart$1,893.93
Specials Log InCreate Account Checkout  Shopping Cart36 item(s)
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 205, 5th stage final carbon filter
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 706, Membrane Filter Casing Housing Assembly
1 x HK120-P-TK for USA 110V / 60Hz
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122

View Cart$1,893.93

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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