Log In Log In  |  Checkout   |  55 item(s)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 706, Membrane Filter Casing Housing Assembly
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x MK420, Maintenance kit for RO565
1 x *Discontinued* RD106
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 723, Feed Water Adapter with Ball Valve
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x Optional: 564 Membrane Filter Housing Wrench Opener

View Cart$2,208.94
Specials Log InCreate Account Checkout  Shopping Cart55 item(s)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 706, Membrane Filter Casing Housing Assembly
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x MK420, Maintenance kit for RO565
1 x *Discontinued* RD106
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 723, Feed Water Adapter with Ball Valve
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x Optional: 564 Membrane Filter Housing Wrench Opener

View Cart$2,208.94

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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