Insul-Mate™ stainless steel elbow covers are precision formed and are sized to cover and weather protect insulated elbows. They are formed from .016” thick, T316 stainless steel alloy. The elbows are manufactured to meet ASTM C-450 specification. Insul-Mate™ stainless steel elbows fit 90 degree and 45 degree insulated elbows from ½” to 10” nominal iron pipe size.