TimBuck2 Posted June 3, 2008 Share Posted June 3, 2008 Do you periodically have to change the cartridge in these if they have never been deployed, or will the canister last indefinitely until used?TB2 Link to comment Share on other sites More sharing options...
Sandmannd Posted June 4, 2008 Share Posted June 4, 2008 I believe to be safe you should change them every year. I really want to get a pair. I believe Cabelas had them buy one get one half price. Link to comment Share on other sites More sharing options...
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