Pratt Whitney PT6A Series 100Hr Inspection Kit.
The PT6 100 Hour kits are a universal kit design for use in 100 hour inspection for most Pratt & Whitney PT6 engines. Each kit contains a fuel filter, o-rings, and gaskets required for change. Since it is a universal kit there may be o-rings that are not used. Be sure to check aircraft manufacturer's IPC for specific installation use.