Heyward sand filter

I need to replace the sand in my Heyward filter. I would also like to replace the internal parts, but I need the correct model number.  Someone removed the label that shows the model number.  The pool is 33000 gallons.  Is there some way to measure the sand filter to determine what model I have.

Thanks

Randy

Hi Randy, your best bet is to post photos of your filter, the valve, and any labels that you might find on the valve.  We can probably figure it out from that.