CUSTOM Return air plenum for filter 12x12x1" and round collar 8" diameter

This
is a  Custom Sheet Metal return air filter rack plenum for filter
12″x12″x1″
.
Made in America by hand from American made 26 Gauge Steel Galvanized
Sheet Metal . There is a 3/4″ hem flange on one 12″x12″
end
Outside
the plenum (around the flange) has dimensions 13-3/4 x 13-3/4″
and height 5-1/8″
,
and the other side is fitted with an end cap with a 6″ diameter
collars
. Actual overall dimensions flange
side for this rack 13-3/4″ x 13-3/4″ .
From top to bottom the plenum is 5-1/8″ long and the collar
measures 4″ in length. There is a sliding door on the 12″
side for filter access. The door can slide from ether side allowing
for easy access. Filter for this plenum is 12 x 12 x 1″. Filter
is not included.
CUSTOM NO RETURN