Rite Size C fits Penguin 200B, 350B, 170B, and 330B
At Marineland, we design our filter cartridges to meet the absolute highest standards of water purification,
performance and operational ease. Each pre-assembled cartridge slides easily into place, providing
superior mechanical and chemical filtration and making replacement fast, dry and effortless. The cartridge
mechanically filters water through a pad of double thick poly-fiber.  Debris and waste particles are trapped,
and water is chemically filtered through Marineland's Black Diamond Premium Activated Carbon.

Inside the cartridge, a patented ribbed backing ensures even distribution of activated carbon to deliver
maximum water-to-carbon contact.  The result?  Crystal clear, crystal clean water.