Log In Log In  |  Checkout   |  80 item(s)
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x WS-150M, Whole House Water Softener
2 x KT-103, Optional Manual Membrane Flush Valve
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 706, Membrane Filter Casing Housing Assembly
1 x 719, Drain Saddle Clamp / Valve
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 1st stage SF05 sediment filter (replace every 6-12 months)

View Cart$6,633.64
Specials Log InCreate Account Checkout  Shopping Cart80 item(s)
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x WS-150M, Whole House Water Softener
2 x KT-103, Optional Manual Membrane Flush Valve
1 x .K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 706, Membrane Filter Casing Housing Assembly
1 x 719, Drain Saddle Clamp / Valve
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 1st stage SF05 sediment filter (replace every 6-12 months)

View Cart$6,633.64

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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