42 Pack Filter Media Kit for Canister Filters - Bio Foam, Ceramic Rings, Carbon
2 Silicone Lube (2 sets in box). This comprehensive set includes 4 Blue Bio Foam. 4 Black Bio Foam. 4 White Bio Foam. High-Porosity Ceramic Rings: Features a 97% micro-pore design, promoting microbial growth and strong adsorption.