Log In Log In  |  Checkout   |  26 item(s)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x WS-150M, Whole House Water Softener
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 719, Drain Saddle Clamp / Valve
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SC209, Specialty Filter Nitrate Removal Filter

View Cart$4,050.45
Specials Log InCreate Account Checkout  Shopping Cart26 item(s)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x WS-150M, Whole House Water Softener
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 719, Drain Saddle Clamp / Valve
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SC209, Specialty Filter Nitrate Removal Filter

View Cart$4,050.45

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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