FreshWater Clean Screen Pre-Filter Type_Filter The 5CH-45 is 5-5/16 in

The 5CH-45 is 5-5/16 in across and 10 in tall with an open top and a 1-1/2 in MPT thread

while the 2-1/2 inch open beveled bottom completes the seal

What stands out here is the pleat density

Made of Teflon Coated Fiberglass

FreshWater Clean Screen Pre-Filter Type_Filter The 5CH-45 is 5-5/16 inThe FreshWater Clean Screen Pre Filter attaches to your garden hose and filters out organic contaminants, metals, and sediment before water enters your spa. Best maintenance choice you can make for water quality is one most owners overlook entirely: starting with the cleanest possible fill water means less work managing chemistry afterward. Fill water whether from municipal supplies or private wells almost never comes out of the hose perfectly clean.