Sierra Exhaust Flapper Size:4'' increments for tanks wall &

increments for tanks wall & baffle clearance

The ingeniously designed rope/chain gypsy (chainwheel) is able to accommodate a wide range of chain pitch differences within the specified chain size diameters suitable for use with the RC8 Series

Hook and Latch teeth on large 9

It provides effective position marking during rescue operations and can be used to indicate wind direction

Sierra Exhaust Flapper Size:4'' increments for tanks wall &The Sierra 18 4458 Exhaust Protector Valve is interchangeable with the following: GLM 89260, Mallory 9 44002. Includes stainless steel clamp. Comes in a size of 5 in. and 6 in. or 127 mm and 152. 4mm. Compounded rubber flapper valves prevent water from entering the exhaust system. Made with weather resistant EPDM with UV stabilizer.