I'm pretty sure it is still cheaper getting a 2 yr old bottle re-cert then replacing it entirely. +1 on sending it out, last year we did a full recert/refill for the above mentioned $125 + standard postage of the empty bottle.
Have heard 2nd hand from those that do the refilling that there are many alarming things found inside the bottle, including rust, detached pickup tubes and degraded suppressant from age or freezing, do I believe it, partially, as it was only a general statement, rather then focused on 2 yr old bottles.
Huskar:
For other reasons, we are up to replace ours at the end of this year, and would be willing to price all the options if provided with pertinent info on both your bottles, if viable and cost effective, we may be interested in buying one of your old ones.
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