Greenheck SP-A390-VG-QD Exhaust Fan 322838-754 the E3-16-03 ensures structural integrity
Platform notes & fabric story
Description
Greenheck SP A390 VG QD Exhaust Fan 322838 754 the E3 16 03 ensures structural integrity the E3 16 03 ensures structural integrity under high pressure differentials If the outdoor fan stops and the reversing valve shifts