STV-51 Series Square Top Static Vents, 6-Pack Dome_Steel This pulley is compatible with

This pulley is compatible with fan models beginning in CX36BD and BF60BD

Fully assembled with wire-in design

000 CFM on High

Safe for dusty environments with this fan's totally enclosed motor which prevents dust and debris from entering the internal components

STV-51 Series Square Top Static Vents, 6-Pack Dome_Steel This pulley is compatible withEfficient attic ventilation delivers 51 sq. in. of Net Free Area (NFA) per vent to exhaust trapped heat and moisture, lowering home energy costs Weather & pest protection with an integrated, rodent proof metal mesh screen and a weather defying design to keep out insects, birds, and rain Heavy duty steel build constructed from rugged, factory assembled galvanized steel for long lasting roof durability and a clean, low profile look Factory assembled for