Hello,
First of thank you to all of those who asked questions and to those who answered. It helped me a lot since I've received my first Petromax HK500 (15 days now).
I'd like to know what is the difference between the Pump valve washer (83) et and the Pump valve washer (viton) (83v) ?
Idem for washer (90) and washer (viton) (90v) ?
Thank you for your answer.
JB