No attachments needed on the pump n seal in order to seal mason jars. You punch a hole in the top of the lid with this little hole puncher they provide (looks like a thumb tack), and then place a tab over the hole and use the pump n seal to extract the air from the jar. The package comes with a bunch of tabs but you can also order more from their website. I’ve actually been reusing my tabs and haven’t had any issues with it. Not sure about the Cabelas versions but this one is the closest and best alternative I’ve found to the Food Saver attachment.