Log In Log In  |  Checkout   |  173 item(s)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
5 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x bulk201, Sediment Filter
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x bulksf05, Koolermax Sediment Filter
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
6 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
5 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
2 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
6 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
2 x Conversion Kit, Convert Aquarium to Drinking RO Water System
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 213, 4th stage inline carbon filter (replace every 12 months)
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x bulkc10, Koolermax Carbon Block Filter
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
2 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 752, DC Booster Pump w/ Transformer
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Dispense
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x bulkic21, Koolermax Inline Carbon Filter
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Special Filter Kit Koolermax dealer distribution kit
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 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 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75

View Cart$7,859.63
Specials Log InCreate Account Checkout  Shopping Cart173 item(s)
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
5 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x bulk201, Sediment Filter
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x bulk818, DI resin refill bags Di-Ionization media
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x bulksf05, Koolermax Sediment Filter
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
6 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
5 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
2 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
6 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
2 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
2 x Conversion Kit, Convert Aquarium to Drinking RO Water System
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 213, 4th stage inline carbon filter (replace every 12 months)
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x bulkc10, Koolermax Carbon Block Filter
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
2 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
3 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
2 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 752, DC Booster Pump w/ Transformer
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 550, Standard Chrome Steel Faucet with Spigot for Water Dispense
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
2 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x bulkic21, Koolermax Inline Carbon Filter
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Special Filter Kit Koolermax dealer distribution kit
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 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 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75

View Cart$7,859.63

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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