Log In Log In  |  Checkout   |  137 item(s)
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 719, Drain Saddle Clamp / Valve
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x 752, DC Booster Pump w/ Transformer
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
2 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 213, 4th stage inline carbon filter (replace every 12 months)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 720, Feed Water Adapter with Needle Valve
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x *Discontinued* RD106
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
4 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 706, Membrane Filter Casing Housing Assembly
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x KT-103, Optional Manual Membrane Flush Valve
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
2 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 741-14, Diverter Valve for Countertop Water Units
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x *Discontinued* RD102
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 578, TDS Water Quality Meter tds-3
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"

View Cart$5,171.79
Specials Log InCreate Account Checkout  Shopping Cart137 item(s)
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 719, Drain Saddle Clamp / Valve
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x 752, DC Booster Pump w/ Transformer
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
2 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 213, 4th stage inline carbon filter (replace every 12 months)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 720, Feed Water Adapter with Needle Valve
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x *Discontinued* RD106
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
4 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 706, Membrane Filter Casing Housing Assembly
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x KT-103, Optional Manual Membrane Flush Valve
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
2 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 741-14, Diverter Valve for Countertop Water Units
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x *Discontinued* RD102
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
2 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 578, TDS Water Quality Meter tds-3
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"

View Cart$5,171.79

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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