170 SERIES WHITE RETURN AIR
SIZES BELOW ARE THE HOLE SIZE.
THE OUTSIDE OR FULL SIZE OF THE VENT WILL BE 1 5/8 INCHES LARGER.
6X6 16X4 24X4
8X8 16X6 24X6
10X6 16X8 24X8
10X8 16X8 24X10
10X10 16X10 24X12
10X12 16X12 24X14
10X14 16X14 24X16
10X16 16X16 24X18
10X18 16X18 24X20
10X20 16X20 24X24
10X24 16X24 24X30
10X30 16X30 24X36
10X36 16X36 25X14
12X4 18X4 25X16
12X6 18X6 25X20
12X8 18X8 30X4
12X10 18X10 30X6
12X12 18X12 30X8
12X14 18X14 30X10
12X16 18X16 30X12
12X18 18X18 30X14
12X20 18X20 30X16
12X24 18X24 30X18
12X30 18X30 30X20
12X36 18X36 30X24
14X4 20X4 30X30
14X6 20X6 36X4
14X8 20X8 36X6
14X10 20X10 36X8
14X12 20X12 36X10
14X14 20X14 36X12
14X16 20X16 36X14
14X18 20X18 36X16
14X20 20X20 36X18
14X24 20X24 36X20
14X30 20X30 36X24
14X36 20X36
