Hammond silicon ip65 gasket sets for 1590 series and stomp box enclosures hammond 1590lbgasket pre formed silicon gaskets for use with hammond diecast enclosures and stomp boxes with part numbers beginning with 1590lb the gasket fits into the lid and when correctly installed offers protection to ip65 hammond 1590lbgasket replacement gasket for 1590wlb enclosures pack of 2