Log In Log In  |  Checkout   |  49 item(s)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x WS-150M, Whole House Water Softener
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x FRQ200, Flow Restrictor 200ML / min
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 752, DC Booster Pump w/ Transformer
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G

View Cart$4,202.15
Specials Log InCreate Account Checkout  Shopping Cart49 item(s)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x WS-150M, Whole House Water Softener
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x FRQ200, Flow Restrictor 200ML / min
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 752, DC Booster Pump w/ Transformer
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G

View Cart$4,202.15

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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