Log In Log In  |  Checkout   |  27 item(s)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 752, DC Booster Pump w/ Transformer
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x bulk818, DI resin refill bags Di-Ionization media
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x bulk205, Carbon Block Filter
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x WT-bac, Water Testing Kit, Bacteria Test
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING

View Cart$1,568.94
Specials Log InCreate Account Checkout  Shopping Cart27 item(s)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 752, DC Booster Pump w/ Transformer
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x bulk818, DI resin refill bags Di-Ionization media
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x bulk205, Carbon Block Filter
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x WT-bac, Water Testing Kit, Bacteria Test
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING

View Cart$1,568.94

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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