Greenhouse Exhaust Shutter, Manual, 42" x 42", Aluminum, Single Panel Sungrow Window a dedicated tie bar is

a dedicated tie bar is included to eliminate the common issue of shutter flapping

which requires no electrical power or programming

Quiet and dependable operation is guaranteed by the use of solid shafts and nylon bearings

this system helps support a more balanced and productive growing environment throughout the seasons

Rough Opening: 12

Greenhouse Exhaust Shutter, Manual, 42" x 42", Aluminum, Single Panel Sungrow Window a dedicated tie bar isHigh quality intake shutters are a fundamental component of a professional greenhouse ventilation strategy, acting as the primary entryway for fresh air to be mixed, circulated, and eventually exhausted. This 42" x 42" model is constructed from industrial grade extruded aluminum and features reinforced welded corners, offering a durable and cost effective solution for massive air exchange. The double panel configuration provides the necessary