Williams primer. Also 304 stainless steel. Hot dipped galvanized available. Ductwork is for ambient air
temperature and non-hazardous material. For temperatures over 300 degrees Fahrenheit consult factory.
2. Large 90° segmented elbow.
3. Call for freight rates by common carrier
orders for flatbed shipment to save
freight.
grasshopper elbows, reducing cones
with branches. See p 41.