Log In Log In  |  Checkout   |  108 item(s)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x *Discontinued* RO585A
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x *Discontinued* RO6ALK
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x *Discontinued* RO585
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
2 x KT-103, Optional Manual Membrane Flush Valve
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x *Discontinued* RD106
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x *Discontinued* RO585ERP
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x WS-150M, Whole House Water Softener
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x MK420, Maintenance kit for RO565
1 x *Discontinued* RO585NTF
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Filter,
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
2 x 752, DC Booster Pump w/ Transformer
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x *Discontinued* RD150
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x bulksf05, Koolermax Sediment Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x bulk213, Inline Carbon Filter
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265

View Cart$10,749.83
Specials Log InCreate Account Checkout  Shopping Cart108 item(s)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x *Discontinued* RO585A
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x *Discontinued* RO6ALK
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x *Discontinued* RO585
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
2 x KT-103, Optional Manual Membrane Flush Valve
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x *Discontinued* RD106
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x .K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x *Discontinued* RO585ERP
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x WS-150M, Whole House Water Softener
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x MK420, Maintenance kit for RO565
1 x *Discontinued* RO585NTF
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Filter,
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
2 x 752, DC Booster Pump w/ Transformer
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x *Discontinued* RD150
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 913, 5th stage inline carbon filter (every 12 months)
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x bulksf05, Koolermax Sediment Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x bulk213, Inline Carbon Filter
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265

View Cart$10,749.83

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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