Well, what do you know! A AG dealer selling a pump AND filter combo that's BIGGER than you need! A Hayward superpump 1.5hp and 300# sand filter is overkill--I have 20,000 and use a 1 hp 2speed Superpump with a 200# sand filter and am just fine--and I run solar panels with it too. You are better off downsizing the pump than the filter--only downsize the filter if you downsize the pump.