I've used the MityVac for brake bleeding and cannot recommend it. You must have a really tight seal at the bleeder screw or it will suck air in. I even had one suck air in through the threads on the bleeder screw, so I kept thinking there was air in the system when there really wasn't. Get a Motive Products pressure bleeder instead.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References