Marineland Rite-Size V Bonded Filter Sleeves are designed to prolong the life of filter media by reducing the accumulation of waste and dirt particles which can cause filters to clog prematurely. Use With all Magnum 350 Canister Filters.

• Traps Small Dirt Particles
• Prevents Premature Clogging
• Lasts Longer to prolong filter media life

For best results, rinse or replace monthly. Easy to install and reusable after rinsing.