Description
ME 990S-3DF-400 DF VALVE ONLY
Marshall Excelsior 990S-3DF-400, 3" double-flange internal valve for LP gas tanks. 3" double-flange Excelerator internal valve with 400 GPM excess flow for LP gas storage.

Marshall Excelsior 990S-3DF-400, 3" double-flange internal valve for LP gas tanks. 3" double-flange Excelerator internal valve with 400 GPM excess flow for LP gas storage.
