Boyd Enterprises Chemi-Bags

Boyd Chemi-Bags are tough, double-stitched nylon pouches that serve as universal filter media bags for most aquarium systems. They are excellent for containing any granulated filter media, including activated carbon and phosphate, ammonia, nitrate, or silicate removers.
Double stitcked nylon filter bags for most aquarium systems
For use with any type of granular filter media
Holds phosphate, ammonia, nitrate, or silicate removers or activated carbon
Each bag measures 5" x 10.5" and will fit most filtration systems.