The Pentek 255582-43 is sold in a case of 12 and replaces the following water filters:
The Pentek 255582-43 - 3/8" 5 Micron Sediment Filter is a sediment water filter with a 5 micron rating. This inline water filter cartridge features a 3/8" port size with a John Guest connection type. This Pentek sediment filter reduces sediment and other particles within drinking water down to 5 microns in order to produce water that is both great tasting and clear.
Pentek 255582-43 - 5 Micron Sediment Filter specifications: