BBQ Grill Compatible With Members Mark Grills Heat Plate 15 1/4" x 4 3/4" BCP90691BBQ Grill Replacement Part Heat Plate Porcelain Steel replacement for Sam's Club & Members Mark Models. Listing is for a single heat plate. High Grade Porcelain Steel will outlast most of all other manufactures' heat plates. Very Durable Make sure you measure the size of your original parts and compare with the replacement to verify you are ordering correctly. Overall Size is 15. 25 inch x 4. 75 inch porcelain steel heat plate Fits Members Mark 720