Duravent 3PVL-X4R Pellet Vent Increaser, 3"-4"x3" Impact Large numbers and fractional markings

Large numbers and fractional markings

maintenance-free operation

Blade Finish: Applewood

red letter

Grooved wire guides

Duravent 3PVL-X4R Pellet Vent Increaser, 3"-4"x3" Impact Large numbers and fractional markingsHighlights: Width: 3" 4" Inside Diameter: 3" Use to transition from 3" pipe to a 4" pipe Not a decreaser or stove adapter Cannot be interchanged with other manufacturer systems Rated for continuous use flue temps up to 570 degrees F Double wall pipe air insulated design 0. 012" 430 stainless steel inner wall 0. 018" galvanized steel outer wall For use at elevation 4000' below sea level Warning: This product can expose you to chemicals including