Pentair 181011 Band Clamp Assembly Replacement for Nautilus Pool and Spa Filters - Durable Pool Maintenance Part for Easy Filter Repair and Replacement

Works better than the original on my nautilus NS72. Only problem was the parts were placed in a plastic bag that wasn't sealed properly and a spring and couple of washers were missing. It shouldn't be that difficult to seal the parts, I bought the missing parts and all is well now.