Everpure 153195-06 20 Smp 3G Cl Sa 8/C

does it come with the wrench to take it off?

Does anyone happen to know what o-ring this uses?

Does it come with the o-ring?

The photo looks exactly like what i need, which is the equivalent of the evepure ev9534-20. the specs, however, say it is 6" long. how long is it?