BROAN-NuTone S89339000 Grille 321042-401 High-quality silicone diaphragm maintains sensitivity

High-quality silicone diaphragm maintains sensitivity and performance over a minimum of 250

or mechanical obstructions in the valve body that prevent the plunger from seating properly

Driven by a 3003E enclosed pneumatic actuator with a 3-inch effective diaphragm area

Robust Build Quality: Constructed with high-grade internal components to withstand the steady-state thermal stress of industrial HVAC unit heaters

reducing static pressure drops that can lead to compressor overheating

BROAN-NuTone S89339000 Grille 321042-401 High-quality silicone diaphragm maintains sensitivityThe Broan NuTone S89339000 Grille is a genuine OEM replacement ventilation cover engineered to restore the factory standard performance and appearance of your exhaust fan. Designed specifically for the Broan NuTone 670 and 671 series, as well as several 763 models, this high impact white plastic grille ensures proper static pressure and maximum CFM delivery. As an essential HVAC ventilation part, the S89339000 features a tension spring mounting system