Log In Log In  |  Checkout   |  24 item(s)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO

View Cart$1,098.70
Specials Log InCreate Account Checkout  Shopping Cart24 item(s)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO

View Cart$1,098.70

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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