The 1/2" Black Slim Line and 5 Blue Filter Housing Cap 154083 fits all Slim Line and #5 Blue Housings. This Pentek filter housing cap has a 1/2" inlet NPT/outlet connection. Made of reinforced polypropylene, this pentek filter housing filter cap is black in color.
The 1/2" Black Slim Line and 5 Blue Filter Housing Cap 154083:
This Pentek black housing cap does not have a pressure release button.