Log In Log In  |  Checkout   |  72 item(s)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 723, Feed Water Adapter with Ball Valve
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x FRQ300, Flow Restrictor 300ML / min
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 719, Drain Saddle Clamp / Valve
1 x 706, Membrane Filter Casing Housing Assembly
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x FRQ850, Flow Restrictor 850ML / min
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x bulk213, Inline Carbon Filter
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x *Discontinued* RO585ERP
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x bulk205, Carbon Block Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump

View Cart$3,492.89
Specials Log InCreate Account Checkout  Shopping Cart72 item(s)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x 723, Feed Water Adapter with Ball Valve
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x FRQ300, Flow Restrictor 300ML / min
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 719, Drain Saddle Clamp / Valve
1 x 706, Membrane Filter Casing Housing Assembly
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x FRQ850, Flow Restrictor 850ML / min
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x bulk213, Inline Carbon Filter
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x *Discontinued* RO585ERP
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x bulk205, Carbon Block Filter
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump

View Cart$3,492.89

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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