Fuel Manager Optional Plastic Bowl w/ Drain for use on all non-marine filters for FM1, FM10 and FM100 Fuel Systems - Installs on the bottom of the filter (remove drain-plug and substitute the bowl in it's place) - usage includes but is not limited to 24911, 24912, 24913 assembly housings or 33911, 33912, 33913 filters - NOT FOR USE ON MARINE APPLICATIONS