PelletVent Pro Increaser(0) No Reviews yet Measurements : Diameter: 3"-4" Material : Black Outer Wall Galvalume Outer Wall SKU: PelletVent Pro Increaser $107.95 to $162.90 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Product DescriptionProduct DescriptionIncreaser: is used to transition from a 3" pipe to a 4" pipe and does not act as a decreaser or stove adapter. Reviews 0 BackRatings & ReviewsNo reviews availableBe the first to Write a Review