Actron CP7830 Great if you know what it's for..

Actron CP7830 Great if you know what it's for..
This pump works perfectly and reliably when used as it was intended... for bleeding brakes. Every bad review for this product involved vacuum sealing mason jars; NOT its intended purpose. Bleeding brake lines rarely requires more than 10" hg of vacuum and the instructions explicitly warn against pulling and maintaining a vacuum over 20" hg. Almost every sealing operation exceeds this. Before you give a product a poor review, perhaps try using it the way it was intended and see how it performs at that; and as well, maybe learn to first read the instructions and cautions thoroughly.

Actron CP7830 Working great for sealing wide mouth mason jars

Actron CP7830 Working great for sealing wide mouth mason jars
We've been using this in conjunction with the wide mouth mason jar food saver attachment to seal raw milk and other foods for the past few months. Compared with using an electric food saver, it's nearly silent and almost as fast - plus you don't need electricity. While the grip could be made more comfortable to use, overall we're very pleased and highly recommend it.