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American Plumber W38-OR O-Ring, 151121 50-Pack


American Plumber W38-OR O-Ring, 151121
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Product Information

The American Plumber W38-OR is an o-ring for the following water filtration systems and housings:

  • All American Plumber 3/8 inch I/O Filter Housings
  • WLCS-500 Undersink System,
  • WRO-3167 Reverse Osmosis System
  • 3/8 inch Slim Line housings

The American Plumber W38-OR O-Ring is a replacement o-ring for all American Plumber 3/8 inch I/O Filter Housings, WLCS-500 Undersink System, and WRO-3167 Reverse Osmosis System. American Plumber Part 152031. Fits 3/8 inch Slim Line Housings.

This O-ring is also known as the Buna-N #237 and 237-7470-10. Part number 151121 by Pentek, Ametek, Pentair. This o-ring also replaces the Pentek o-ring 158648.

The American Plumber W38-OR O-Ring, 151121 also has these part numbers:

  • Buna-N #237
  • Buna-N 237-7470-10
  • 151121 by Pentek, Ametek, Pentair
  • Pentek 158648



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W38-OR is used in the following Models
American Plumber
 WLCS-500 Undersink System
American Plumber
 WRO-3167 Reverse Osmosis System
" Happy with my item, the price, and the fast delivery of my filters! " - Sam, Atlanta, GA
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