The Model 2500I door is the insulated version of Model 2500.
General Description
Utilizes 12” drum wheel
Maximum opening size of 18’ wide x 18’ high (324 sq.ft.)
Insulated with R-Value of 4
Top draft stop and side draft stop included
Reduced Drive Chain Hoist operation standard on all doors greater than 10’0" wide OR 10’0" tall; hand (manual) operation standard on smaller door sizes.