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3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x *Discontinued* RD150
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x *Discontinued* RD102
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste

View Cart$2,082.64
Specials Log InCreate Account Checkout  Shopping Cart52 item(s)
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x *Discontinued* RD150
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x *Discontinued* RD102
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x DI210, Heavy-duty DI system for Aquarium and Reef
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste

View Cart$2,082.64

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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