We have added an explanation of the housing material. In general, housings are often described simply as cast iron, and the material is typically ASTM A48 Class 30 (FC200). Since the beginning, COC products have used ASTM A48 Class 40 (FC250), so we have updated the description accordingly. Both the tensile strength and hardness are higher than those of competing products.

Durable one-piece ASTM A48 Class 40 (FC250) cast-iron housing with a solid foot design