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2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect

View Cart$457.85
Specials Log InCreate Account Checkout  Shopping Cart27 item(s)
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect

View Cart$457.85

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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