2-1/2 300 Pressure Duty Black Malleable CapThe 2 1 2 300 Pressure Duty Black Malleable Cap is a high pressure pipe fitting used to seal the end of a pipe, preventing fluid or gas from passing through. Made of black malleable iron, it has a 300# (300 PSI pressure rating), making it ideal for medium to high pressure applications in plumbing, gas, steam, oil, and industrial systems. Specification Details TYPE 300 Pressure Duty Black Malleable Cap DESIGN Threaded connection, allows easy