Regular repair kit includes: seals, bridge, check plate, gaskets, joker valve and spring.
Master repair kit includes: everything in the regular repair kit and piston ring assembly.
"Warning - This product contains chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more info go to www.P65Warnings.ca.gov "
www.P65Warnings.ca.gov