ROCKWOOL CMFRT R38 9.5"X15"19.8s
ROCKWOOL CMFRT R23 5 1/2X15"39sf
ROCKWOOL CMFRT R15 3 1/2X23"60sf
ROCKWOOL CMFRT R30 7.25"X15"29sf
ROCKWOOL CMFRT R15 3 1/2X15"59sf