IHPSV4.5CGV-1 | High Wind Vertical Termination Cap | SV4.5" and 7.5" Concentric Vent | H2152 | IHP570440215SKU:H2152Inventory ID:03611713Select Item:Price: $299.00Quantity: Vertical vent systems terminate through the roof. The final step involves installation of the SV4.5CGV-1 vertical termination. SV4.5CGV 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. Reviews Choose your rating12345