The Pentek 153018 is the correct replacement for the following housings:
The Pentek 153018 10" Slim Line Clear Filter Sump fits #10 caps for Slim Line Clear Housings with any inlet/outlet size. Also known as part number 153018, the Pentek filter sump should be changed at least every 5 years. Sumps do not come with an o-ring and holds 10" x 2.5" water filters.
Pentek #10 Slim Line Clear Canister specifications:
The Pentek Clear Filter Sump is a replacement for the Ametek CSL-CI and the Ametek CSL-C1. This #10 Clear Slim Line Housing Sump may not fit other brands other than the housings listed.