Log In Log In  |  Checkout   |  74 item(s)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 752, DC Booster Pump w/ Transformer
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 723, Feed Water Adapter with Ball Valve
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x bulk201, Sediment Filter
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x bulk818, DI resin refill bags Di-Ionization media
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 205, 5th stage final carbon filter
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO

View Cart$4,699.47
Specials Log InCreate Account Checkout  Shopping Cart74 item(s)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
2 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 752, DC Booster Pump w/ Transformer
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x 723, Feed Water Adapter with Ball Valve
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x bulk201, Sediment Filter
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x bulk818, DI resin refill bags Di-Ionization media
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 205, 5th stage final carbon filter
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO

View Cart$4,699.47

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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