For crystal clear water with convenient, trouble-free maintenance.Activated carbon removes harmful gases and odors. Clears up unsightly discoloration.
Disposable cartridges fit lift tubes of Penn-Plax Multi-Pore and Undergravel "E" Filters.
For best results, your Filt-A-Carb Cartridges should be replaced every two to four weeks. They slip easily onto all undergravel filter lift tubes with no need to disturb set-up.