M-D 84 in. x 112 in. Patio Door Seal Kit

The M-D 84 in. x 112 in. Patio Door Seal Kit provides an effective thermal barrier for large windows and patio doors. The clear see-through film and heavy-duty mounting tape create a sealed dead air space that significantly increases insulating R-value to help reduce energy costs. Designed for simple indoor installation, this insulation kit eliminates cold winter drafts and prevents frost build-up. It is sized to cover one standard patio door or large picture window, ensuring comfortable indoor temperatures year-round.