Log In Log In  |  Checkout   |  67 item(s)
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
2 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x CBV-38, Tank Ball Valve to 3/8 tubing
3 x CKV0402, Blue color Elbow Check Valve Elbow Type
2 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
2 x FRQ300, Flow Restrictor 300ML / min
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x EMT-10, Empty Filter Cartridge Casing Housing
2 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x FRQ850, Flow Restrictor 850ML / min
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT

View Cart$3,623.49
Specials Log InCreate Account Checkout  Shopping Cart67 item(s)
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
2 x CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x CBV-38, Tank Ball Valve to 3/8 tubing
3 x CKV0402, Blue color Elbow Check Valve Elbow Type
2 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
2 x FRQ300, Flow Restrictor 300ML / min
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x EMT-10, Empty Filter Cartridge Casing Housing
2 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x FRQ850, Flow Restrictor 850ML / min
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT

View Cart$3,623.49

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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