The Filbur 30-77850 is the correct compatible replacement for the following water filters:
The Filbur 30-77850 50 Micron Pool/Spa Water Filter is a replacement water filter cartridge used to purify the water in pools and spas. This 50 micron filter is very effective at filtering contaminants in water and offers you additional durability through strong Plastisol constructed end caps.
Filbur 30-77850 50 Micron Pool/Spa Water Filter specifications:
This Filbur Jumbo pool filter boasts a 50 micron rating for water purification and includes pleated polyester media construction for top tier performance. This pleated pool filter cartridge can be cleaned and re-used, and prevents surface blinding that can constrict the flow of water.