Insulating Arch Board 1"x1'x3'
Insulating Arch Board 1" thick by 12" wide and 3' long. The arch board is used to line the arch before the firebrick is placed in the arch. It is soft enough it can be cut with a utility knife and will withstand temperatures of 1900 degrees without breaking down. Using this product will insulate your evaporator better than using just firebrick. There are 16 boards if you wanted to order a full case.