1/4 British Standard Pipe Parallel Nickel-Plated Countersunk Sealed PlugThe 1 4 British Standard Pipe Parallel Nickel Plated Countersunk Sealed Plug is a precision engineered fitting designed to seal off unused British Standard Pipe Parallel (BSPP) ports in hydraulic, pneumatic, and fluid systems. The countersunk head allows for a flush fit, and the integrated sealing feature ensures a leak proof connection. Specification Details TYPE British Standard Pipe Parallel Nickel Plated Countersunk Sealed Plug DESIGN Countersunk