ADD V-Back To 15"x18" "W" or "R" Series Bottom Hinged Intake Door

Add heavy duty V-Back to any new 15"x18" bottom hinged, hand operated, fire rated chute intake door in the "W" or "R" Series. The use of a V-Back on the door provides limited space to control the size and length of objects put in the chute. This design also helps to keep debris from collecting on the chute throat just inside the door.