Noritz Noritz 4" Fire Stop for Single Wall Stainless Steel Venting

The FS4 vertical stainless steel single wall firestop adds another level of protection to your home. The FS firestop piece continues the durable easy to install stainless steel design seen throughout the Noritz N-Vent series. As part of the N-Vent series this product is approved for tankless and boiler stainless steel exhaust installations, enabling you to know you've made the right choice in both form and function.Firestop: Noritz leaves nothing out when it comes to you and your homes safety. The FS3 fi...