The support is used mostly in vertical installations when the vent runs through a floor. It maintains a 1” clearance from combustible materials. A tightening collar locked around the vent, secured by self-taping screws rests on the plate. Can be screwed or nailed to the floor.

SV4.5SP venting component is used on some Astria, Superior, and Lennox gas burning direct vent fireplaces. Check your model's Installation Manual for listed Secure Vent Components.