The Pentek 155236 is sold in a case of 24 and is the correct replacement for:
The Pentek 155236 Clear Filter Housing Cartridge is the empty cartridge for the #10 housing. Also known as part number PCC2-10, the clear empty cartridges are unassembled. The dimensions of this Pentek 155236 empty filter shell is 2.5" x 9.75."
Pentek Filter Housing Cartridge specifications:
The Pentek water filter housings can be used in a variety of undersink, countertop and reverse osmosis applications. This cartridge shell is designed for increased strength and durability.