Were almost neighbors. lol!
It's been awhile since I purchased mine, but it was at O.K. Feeds, on Dodge and Ft. Lowell.
Give them a call and a try doing a google . We also have Arizona Feeds here. And Tractor Supply. to call and see if they have it.
It was a 50lb bag that I had gotten, so it's lasted me quite a bit.
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Pumice source (Tucson)
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