This may be a dumb question but whats the difference between these:
https://www.amazon.com/dp/B00AWS3HQO/?tag=hearthamazon-20
and these:
https://www.ebay.com/itm/Insulating...h=item33daeaf6de:g:DTYAAOSwRBVbyZh9:rk:1:pf:0
https://www.amazon.com/dp/B00AWS3HQO/?tag=hearthamazon-20
and these:
https://www.ebay.com/itm/Insulating...h=item33daeaf6de:g:DTYAAOSwRBVbyZh9:rk:1:pf:0