Log In Log In  |  Checkout   |  52 item(s)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
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 Conversion Kit, Convert Aquarium to Drinking RO Water System
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)

View Cart$1,243.88
Specials Log InCreate Account Checkout  Shopping Cart52 item(s)
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
4 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
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 Conversion Kit, Convert Aquarium to Drinking RO Water System
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)

View Cart$1,243.88

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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