Heavy duty, full opening manhole designed to exceed all DOT regulations for 406 series man-holes. Rated at 36 psig with optional vapor recovery (shown in drawing below), “Smart Vent” * and other cover openings available. Unique collar/ cover combination allows secure connection for new installation or easy retrofit to existing collar. Heavy duty aluminum cover and collar with Buna-N gaskets as standard materials. Other gasket materials available. See separate product listings for vapor recovery.
** * Refers to #2100 “Smart Vent”
** Refers to #2135 Vapor Recovery Vent