This pneumatic thermostat guard is compatible with a wide range of Johnson Controls and Penn units

this is the Control Overlay Label only

36-inch square footprint

As an OEM-quality fit

pressure must be measured at other manifold points

BROAN-NuTone S97007696 Filter 318973-401 This pneumatic thermostat guard isThe BROAN NuTone S97007696 Filter is a critical component for maintaining air quality in non ducted range hoods. Measuring exactly 8 3 4" x 10 1 2" x 3 8", this aluminum grease mesh and charcoal combo filter is engineered to capture airborne particulates and neutralize cooking odors before recirculating air back into the kitchen. Designed as a high performance replacement for the NuTone 41F filter, it features a multi layer media construction that