Log In Log In  |  Checkout   |  72 item(s)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
5 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x *Discontinued* RD102
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x 565, Digital Pressure Gauge Tester Monitor
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x PE Tubing Tube Cutter
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x bulk205, Carbon Block Filter
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x *Discontinued* RD150
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G

View Cart$3,224.48
Specials Log InCreate Account Checkout  Shopping Cart72 item(s)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
5 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x *Discontinued* RD102
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
3 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x 565, Digital Pressure Gauge Tester Monitor
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x PE Tubing Tube Cutter
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x bulk205, Carbon Block Filter
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x *Discontinued* RD150
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G

View Cart$3,224.48

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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