Cartridge Filter, Carbon 5 Micron, 9.75in

Item: 21233
Mfg#: 155531-43
MPW#: 21233
Pentair Pentek Standard Filter Housings are manufactured of a durable polypropylene or clear Styrene-Acrylonitrile (SAN). All are equipped with 3/4" NPT inlet and outlet ports. Standard Filter Housings are available in both 10" and 20" lengths and will accommodate a wide range of 2-1/2" to 2-7/8" diameter cartridges. The reinforced polypropylene cap offers an optional pressure-relief button on the inlet side to relieve pressure inside the housing when changing filter cartridges.
Pentek Standard Cartridge Filters are available to buy in increments of 12. 
QTY 1 (Box) = 12 filters
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Reinforced polypropylene housings have excellent chemical resistance and are ideal for many residential, commercial and industrial applications. 

Clear sumps offer on-site examination of the cartridge. Opaque Standard Filter Housings are molded from rugged reinforced polypropylene. They offer outstanding chemical compatibility and are ideal for use in a variety of low-flow applications. Clear Standard Filter Housings offer on-site examination of flow, performance, and cartridge life. They are ideal for a variety of applications.



  • Ideal for a wide range of applications, including residential, commercial and industrial
  • Available in 10" and 20" lengths
  • Thick walls for increased strength
  • Optional pressure relief/bleed button on inlet side of cap
  • Leak-proof seal 
  • Available with clear or opaque sumps



  • Housing – Polypropylene (opaque) or Styrene Acrylonitrile (clear)
  • Cap – Reinforced polypropylene
  • Button Assembly – 300 Series stainless steel, EPDM, and polypropylene
  • O-Ring – Buna-N
  • Temperature Rating– 40-125°F (4.4-51.7°C)
  • Maximum Pressure – 125 psi (8.6 bar)
QTY 1 (Box) = 12 filters