Log In Log In  |  Checkout   |  94 item(s)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x *Discontinued* RO585A
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 310, 2nd stage CTA 10 US Membrane filter (every 2-3 yrs)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 752, DC Booster Pump w/ Transformer
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x *Discontinued* RO155
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)

View Cart$8,399.45
Specials Log InCreate Account Checkout  Shopping Cart94 item(s)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x Parts, Ro Water System Installation Parts Bag 1/4"
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x 759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x *Discontinued* RO585A
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 310, 2nd stage CTA 10 US Membrane filter (every 2-3 yrs)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x 752, DC Booster Pump w/ Transformer
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
1 x *Discontinued* RO155
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x TMR-25A, 2.5 AMP Transformer Power Supply Ballast for 8800 5853
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)

View Cart$8,399.45

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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