Henkel 1508974 Silicone Rubber Sealant, 10 Oz, Clear Hardware Flute geometry removes dust from

Flute geometry removes dust from the hole quickly

Features a unique ridge shape that delivers better airflow

Slide switch with foot for full range dimming

Inside Diameter: 0

Pipe diameter: 3"

Henkel 1508974 Silicone Rubber Sealant, 10 Oz, Clear Hardware Flute geometry removes dust from100 percent silicone rubber, withstands damaging effects of weather. For HVAC applications. Adheres to glass, porcelain, clean metal, ceramic tile and some plastics. Watertight, permanently flexible. Withstands temperatures 65 to 450 degrees Fahrenheit. Meets Federal Specifications TT S 001543A, Class A; TT S 00230C, Type II, Class A; also meets ASTM C 920, Type S, Grade NS, Class 25, Use NT, G, A; and MIL A 46106A, Amend 2, Type 1. FDA USDA approved.