WentWorth 14 Pound Grease Trap Interceptor 7 GPM Gallons Per Minute WP-GT-7 Removable lid for easy maintenance and clean out. Constructed of 11 gauge carbon steel w/ corrosion resistant coating. T-vent for proper air venting is included. Designed for removing fat, oil and grease from waste water. Main body suspended from floor to avoid corrosion.