Airmaster MTR-556SP Single Panel Shutter Motor Kit High Pressure Cylinder Filling (SCUBA/SCBA) See chart further below for

See chart further below for details

while the cutting rear profile seals concrete and cuts down on high spots

4-1/2" Leak Diverter Dimensions 28 1/2 in x 16 in Thread Size 3/4 in

and awkward vehicle components

Airmaster MTR-556SP Single Panel Shutter Motor Kit High Pressure Cylinder Filling (SCUBA/SCBA) See chart further below forThe model MTR 556 SP is a single panel exhaust shutter motor pack, designed to be used with shutter model 556 SP. Field installation is required to convert gravity exhaust shutter to motorized operation. This motor pack features power open spring close, which provides closure in the event of electrical failure. This motor pack is equipped with motor, motor bracket, linkage and mounting hardware.