Log In Log In  |  Checkout   |  36 item(s)
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C

View Cart$2,056.99
Specials Log InCreate Account Checkout  Shopping Cart36 item(s)
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C

View Cart$2,056.99

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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