I have available
16+ Corner & round box filters. Used about 7 months. $2 each
6-8 Hydro-sponge (Hydro II) filters with ceramic airstones - $3 each.
6+ small sponge filters (great for 2.5s) - $2 each
Linear Air pump from Jehmco - used about 6 months. Includes new filter replacement.
Model...
