With Stack Hat™ you can save your exhaust system by keeping rain, soot and snow out. Made from high-quality polymer and installs in seconds.

Stack hats keep out water, weather and soot. Made from high-quality polymer. Safe and easy to install and remove. Dual kit includes two stack hats and an extension pole. No moving parts. Fits 5" stacks. 12-1/2"L. One hat is 5-1/2" dia., the other is 5-3/4" diameter. Hats stack in

Stack hats keep out water, weather and soot. Made from high-quality polymer. Safe and easy to install and remove. Dual kit includes two stack hats and an extension pole. No moving parts. Fits 6" stacks. 12-1/2"L. One hat is 6-1/2" dia., the other is 6-3/4" diameter. Hats stack i

Stack hat. Save your exhaust system with the easy to install Stack Hat kit. Shop. Stack hat. A Simple Solution To Keep Water Out Of Your Exhaust System. 5" Dual Stack Hat Kit. $138.95 6" Dual Stack Hat Kit. $138.95 Stack Hat Extension Pole. $57.95 5" Stack Hat- Individual. $40.95

Stack hats keep out water, weather and soot. Made from high-quality polymer. Safe and easy to install and remove. No moving parts. Fits 5" stacks. Available in red, blue or black. Does not fit Peterbilt and Freightliner OEM curved top stacks. Will fit aftermarket curved top stacks.

Stack Hats are safe and easy to install & remove with the extension pole. Extension quickly expands to make installation and removal a snap and collapses to make storage easy. For mounting StackHAT onto straight stacks up to 13 feet off the ground.