Helix Life Support Mesh Media Bag with Drawstring Cedar and comes with two screws

and comes with two screws to fasten to lighthouse roof

The PoliGlassBead XStream polishing filters are specifically designed for extreme conditions where extra polishing is required -- runoff from flooding

Promotes a cleaner pond environment and eliminates troublesome organic sludge and debris

3/8" x 300' weighted tubing

Helix Life Support Mesh Media Bag with Drawstring Cedar and comes with two screwsMedia performs best as a filter when it is not in a bag, but unless you have a filter specifically made for loose lava rock or other media (like the Helix Bio Mechanical Waterfall Filter or Bio Mechanical Reactor), many people prefer keeping their media in a bag for easy removal and rinsing. The Helix Mesh Media Bag measures 19" x 23", and features a drawstring for easy closing.