Log In Log In  |  Checkout   |  111 item(s)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
4 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x *Discontinued* RO155C
1 x DB40, DI Resin Refill Bag for DI210, RD322
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x *Discontinued* RD102
1 x HK120-P-TK for USA 110V / 60Hz
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 706, Membrane Filter Casing Housing Assembly
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x KT-103, Optional Manual Membrane Flush Valve
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x MK420, Maintenance kit for RO565
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x *Discontinued* RD150

View Cart$5,680.02
Specials Log InCreate Account Checkout  Shopping Cart111 item(s)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
4 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x *Discontinued* RO155C
1 x DB40, DI Resin Refill Bag for DI210, RD322
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x *Discontinued* RD102
1 x HK120-P-TK for USA 110V / 60Hz
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 706, Membrane Filter Casing Housing Assembly
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x KT-103, Optional Manual Membrane Flush Valve
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x MK420, Maintenance kit for RO565
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x *Discontinued* RD150

View Cart$5,680.02

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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