Not sure, I exchange mine at Lowe's, across the road from Tractor Supply.
I'm not sure the one here in Anderson is in between 3 other places that also have propane refill/exchange. So they keep their prices very competitive.
I believe around $20.00 Might check CO OP they have fill station there. My 100lb tank was about $80.00
Sorry I do not know that but you can call they will tell you
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