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1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
3 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x 205, 5th stage final carbon filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x bulk213, Inline Carbon Filter
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x Optional: 564 Membrane Filter Housing Wrench Opener
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 bulk205, Carbon Block Filter
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115

View Cart$3,148.40
Specials Log InCreate Account Checkout  Shopping Cart69 item(s)
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
3 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x 205, 5th stage final carbon filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x bulk213, Inline Carbon Filter
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x Special Filter Kit Koolermax dealer distribution kit
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x Optional: 564 Membrane Filter Housing Wrench Opener
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 bulk205, Carbon Block Filter
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115

View Cart$3,148.40

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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