F series (ALWITCO)
F series has both an outer and inner perforated guard plus an additional felt disc at the inlet for extra
M series (ALWITCO)
M series has an outer perforated guard over the cellulose element. Filters out dirt particles as small as 5 micron.
Speed Control Muffler – Plated Steel
Speed Control Muffler units provide an infinite variation of metering air flow at an acceptable sound level on exhaust ports