(W = side to side) (D = front to back) (H = top to bottom) HRV-1215-S: Overall: 11-4/8"W X 18"D X 14-3/4"H
Face Frame: 11-7/8"W x 18"D x 14-3/4"H
Frameless: 12"W x 18-1/4"D x 14-7/8"H
HRV-1220-S: Overall: 11-4/8"W X 18"D X 19-3/8"H
Face Frame: 11-7/8"W x 18"D x 19-3/8"H
Frameless: 12"W x 18-1/4"D x 19-1/2"H
HRV-1515-S: Overall: 14-3/4"W X 18"D X 14-3/4"H
Face Frame: 14-3/4"W x 18"D x 14-3/4"H
Frameless: 14-7/8"W x 18-1/4"D x 14-7/8"H
HRV-1520-S: Overall: 14-3/4"W X 18"D X 19-3/8"H
Face Frame: 14-3/4"W x 18"D x 19-3/8"H
Frameless: 14-7/8"W x 18-1/4"D x 19-1/2"H