Never replace trimmer line with a line diameter size other than that recommended in the owners manual.
Most trimmers use .080", .095" or .105" diameter trimmer. If a larger size is used, other than what it is recommended, the cutting head may not function as intended and the engine can become overloaded and/or damage may occur.
Comment
PP133 uses .115. I plan on replacing the head with one that uses .95 if possible. Anyone know if this can be done and please post the model. TY