Keep your pool water clear and clean with a Filter Cartridge (Type I) by Bestway®. This replacement cartridge measures 3.1''x3.5'' and is designed for 330 gallon per hour (110-120V) filter pumps. They are easy to clean and sift dirt and debris out of your pool with your pump. Bestway® recommends replacing them every 2 weeks for best results.

• Size: 3.1" x 3.5"
• Easy to clean
• Replacement for 330 gal. filter pumps
• Contents: 1 filter cartridge