The Pentek SH154440 is the correct replacement for:
The Pentek SH154440 1/2" Black Filter Housing Cap has a 1/2" inlet NPT/outlet connection and is constructed from durable Polypropylene.
Pentek Filter Housing Cap specifications:
This Pentek Filter Housing Cap is equipped with a pressure release valve. To prevent cracking of the filter and avoid water leakage, be sure to protect your housing unit against freezing.