i have alot of luck, using search terms, like cheapest,
boveda supplier, etc.
also have great outcome with the B62's. had never heard, nor tried, the competition. i love my 20L (? the ones that go about 5gallons/easy, pound, without crushing.?). but the smaller cvaults, were easily diy'd... such a waste, on my part... actually checked em in the pool...
they last alot longer, than advertised, depending on locale/rh, i figure. been lucky.
growers house, was cheap, but they were also righting a shipping oops, for me. great people.