ATI Hydro Sponge Filter #2 Bulk with New Gravel Base marina submersible The number of water changes

The number of water changes can also be reduced

This will help increase the life of your 3 Watt UV lamp

Scraper attachment & blade included

a patented ribbed backing ensures even distribution of activated carbon to deliver maximum water-to-carbon contact

*Actual color may vary

ATI Hydro Sponge Filter #2 Bulk with New Gravel Base marina submersible The number of water changesThe ATI sponge filters are excellent biological as well mechanical filters that only need a source of air to operate. They are excellent for fry tanks because they won't suck up your babies! For aquariums up to 20 gallons. Sponge size 4 x 2. 75 Inches. Comes with 5 inch lift tube. Bulk sponge filters are the same as the ones in the box without the packaging! Hydro Sponge filters stand tall over the competition with superior construction, quality