Replacement plug for Filstar XP Canister Filter

by Kathy
(Michigan)

The rubber stopper (plug) that fits in the top of the filstar has become rigid and no longer stays in place. Where can I purchase a replacement?

A: There is no rubber plug for the filter. What you might be talking about is the plastic plug that goes in a hole on the side of the filter. This is an air vent. If it comes out there is no way that I know of to replace it. If your filter is less than two years old you might try conacting the manfuacturer, Mars Fishcare directly.