Replacement skylights include care and installation instructions plus a tube of approved elastomeric sealant to be used when installing.
Hole Dimensions 15in x 18in, Flange Dimensions 18in x 21 1/2in, Bubble Height Of About 4 1/2in.
SPECIFICATIONS
Unit Weight: 4.02 lb
Brand: Specialty Recreation Inc
MFG Part No.: SL1518W
