replacing the sensors on our RV tanks (grey and black)

Описание: had a issue with our sensors not reading on our grey tank last time we went camping. black tank was fine, but decided to do all of them. total of 8 sensors. assuming they were original is also why i replaced them all.
got them from amazon, if you type in rv sensors they will pop up. not a hard job to do but the position of them make it tough, good luck