Cold-Shrinkable Seal with Copper Braid & Constant Force Spring. Size Range 1.28 inch to 2.30 inch jacket diameters. Maximum installed diameter is approximately 2.75 inches. Cold-Shrinkable Seal with Copper Braid & Constant Force Spring. Size Range 1.28 inch to 2.30 inch jacket diameters. Maximum installed diameter is approximately 2.75 inches.