Log In Log In  |  Checkout   |  62 item(s)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 741-14, Diverter Valve for Countertop Water Units
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x bulk213, Inline Carbon Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x *Discontinued* RD150
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FRQ420, Flow Restrictor 420ML / min
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$2,800.89
Specials Log InCreate Account Checkout  Shopping Cart62 item(s)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 741-14, Diverter Valve for Countertop Water Units
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x bulk213, Inline Carbon Filter
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x ERP1000 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x *Discontinued* RD150
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FRQ420, Flow Restrictor 420ML / min
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$2,800.89

ASA, Stem Adapter NPT Thread [ASA]

$2.50

ASA, Stem Adapter NPT Thread



* ASA, Stem Adapter NPT Thread

* Please choose size from the selection box below. First number is tubing OD Outside Diameter and second number is NPT National Pipe Thread. (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 1/4" NPTF Thread ASA0404
* 1/4" Tube OD x 1/8" NPTF Thread ASA0402
* 3/8" Tube OD x 1/4" NPTF Thread ASA0604
* 3/8" Tube OD x 3/8" NPTF Thread ASA0606
* 1/2" Tube OD x 3/8" NPTF Thread ASA0706
* 1/2" Tube OD x 1/2" NPTF Thread ASA0707


* 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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