The Markel Products 3320EX16 Wall Heater Accessory Surface Mounting Frame is a brown steel frame designed for wall mounting. It is specifically made for use with models ranging from E3323TD-RP to G3327TD-RP. The frame has a weight capacity of 35 lb and is ETL listed for safety standards. With an outside height of 20-27/32" and width of 15-29/32", this surface mounting frame extends 4 inches out and is angled at 90 degrees for easy installation. Made in the US, this product from Markel Products is a reliable and sturdy accessory for your space heater.