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1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x 752, DC Booster Pump w/ Transformer
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FRQ850, Flow Restrictor 850ML / min
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)

View Cart$1,429.45
Specials Log InCreate Account Checkout  Shopping Cart45 item(s)
1 x .SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x 752, DC Booster Pump w/ Transformer
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FRQ850, Flow Restrictor 850ML / min
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 214, Clear Inline Filter Cartridge Empty Case
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 4th stage Optional Refill bag #818 DI Resin Refill Bag
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)

View Cart$1,429.45

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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