This EX-CAP is only 1” taller than your average locking well plug. This line drawing illustrates the EX-CAP and its counterpart the Quick Connect. Together, they open the self-sealing spring-loaded valve in the EX-CAP for gas or liquid to be removed, sampled, or pressure checked, all without the removal of the Cap. The EX-CAP is made entirely of reinforced chemical resistant nylon and has a stainless steel, easy to use, flip-down locking hasp which allows you to secure the cap with any #1 padlock. The EX-CAP is currently sold in three sizes, 1”, 2” & 4”. The EX-CAP is a permanent ...