Flue Brush, Double Spiral/Double Stem, Fill Type Stainless Steel, Brush Length (In.) 4 1/2 in, Brush Dia. (In.) 4 1/4 in, Tube Dia. (In.) 4 1/2 in, Handle Type 1/4 in (M) NPS, Overall Length (In.) 7 1/2 in, For Use With Fiberglass or Metal Handles,...