The 36″ Rociprolap lap plate (only) is manufactured by Covington Engineering Corp. The 36″ Rociprolap unit is the largest and most heavy duty unit. The plate/pan is heavy duty cast iron, capable of holding up to 275 lbs. Weight of the plate/pan is 220 lbs. Dimensions: 45″ x 45″ x9″. Shipping weight 310 lbs. Model CRL236, FOB Redlands, CA 92374 Ship-FTL.