BROAN-NuTone S89339000 Grille 321042-401 or mechanical obstructions in the

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

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

these LFRK 909-CK2 2 1/2-3 internal components are designed to serve both the lead-free (LF909) and the original 909 series 2-1/2 inch to 3 inch backflow preventers

ensuring precise alignment for float rods and switch assemblies

BROAN-NuTone S89339000 Grille 321042-401 or mechanical obstructions in theThe 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