Review on Dometic 385318162 Ball Shaft Cartridge by Richard Dean

I bought this set after reading the FAQ and seeing an answer saying it was for 510x or 510 plus. On the first flush, the pedal broke where it contacted the spring cartridge arm. A closer look reveals that the set shown is for toilets with a metal flush pedal. I'm so pissed off that I have to order another pedal and spring cartridge. I don't appreciate this Dometic nonsense. From what I understand you owe me $47.95 for parts that I should have ordered from another source. Make it easier to identify the right parts.