Steelhead offers two types of Non-Spill 55mm bottle caps for 3 and 5 Gallon Water Jugs.  Our closures ensure product integrity, and provide a secure seal and tamper evidence. Choose between our blue ring seal technology or standard foam liner inserts both guaranteed to work with PC or PET bottles by Steelhead. Avoid the hassle of loose plugs in your jugs and unsanitary leaks.