Texas freeze damage - Sand filter replacement help needed

I live in North Texas and due to the freeze last week we went without power for several days. The obvious damage that I’ve found so far is that a PVC pipe froze and blew off. But more importantly, the sand filter cracked. I’ve seen some used ones for sale locally, so if I decided to go that route what are the exact things I’d need to know to compare apples to apples so that I find a correct replacement (diameter, flow rate, etc)?

Also, is replacing a sand filter something that is...

Texas freeze damage - Sand filter replacement help needed