Specifications:

• REPLACEMENT FILTER - Get purer, cleaner water in your pool or spa with these replacement cartridge filters compatible for Pleatco PRB50IN, Unicel C-4950, Filbur FC-2390.
• DIMENSIONS - This replacement pool filter cartridge has an open 2 1/8 inch (2.125") top, 2 1/8inch (2.125") open hole bottom, 4 5/16 to 5 inches (4.3125 - 5") diameter and 13 5/16 inch (3.3125") length. The filter material is made of USA made premium spunbond trilobal filter material for better filtration.
• MULTI PACK SAVINGS - Choose from our value savings single, double or 4 pack filter bundle. Having multiple filters on hand can help extend the life of each and protects your pool or spa because you can keep 1 filter active while cleaning the other for zero filtration downtime.
• EASY TO CLEAN - Guardian Filtration Products are designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear and safe for you and your family. Our premium filter material keeps your water clearer and is easier to clean.

Pool Spa Filter Replaces Unicel C-4950RA Pleatco PRB50-IN-M Filbur FC-2390M - Rainbow, Waterway, Custom Molded Products