DuraVent FasNSeal 10" x 18" 29-4C Stainless Steel Adjustable Vent Length h67.125 If your supply pressure is

If your supply pressure is above 2 psig and less than 10 psig then you will need this second stage regulator

our fire glass releases no harmful chemicals

The use of glass fibers for reinforcement means that it'll not rust like steel and therefore the glass fibers will prevent the product from cracking

Controls - Use the side-mounted buttons or the remote control to adjust volume and function

If Opening Is Greater Than 27"H X 42"W

DuraVent FasNSeal 10" x 18" 29-4C Stainless Steel Adjustable Vent Length h67.125 If your supply pressure isAll FasNSeal (single wall) vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90 from mechanical locking bands. This construction feature allows for ease of installation. The air space between the inner and outer wall on FasNSeal W2 helps to reduce the clearance to combustibles in addition to creating a heat shield