Log In Log In  |  Checkout   |  85 item(s)
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x KT-103, Optional Manual Membrane Flush Valve
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x *Discontinued* RO585ERP
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 578, TDS Water Quality Meter tds-3
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x FRQ200, Flow Restrictor 200ML / min
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x *Discontinued* RD106
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 741-14, Diverter Valve for Countertop Water Units
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*

View Cart$3,790.58
Specials Log InCreate Account Checkout  Shopping Cart85 item(s)
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x KT-103, Optional Manual Membrane Flush Valve
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x *Discontinued* RO585ERP
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 578, TDS Water Quality Meter tds-3
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x FRQ200, Flow Restrictor 200ML / min
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x *Discontinued* RD106
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 741-14, Diverter Valve for Countertop Water Units
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*

View Cart$3,790.58

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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