Filter Media Packaging Type Bag Media filters are used to protect water quality in streams, rivers, and lakes. They can be effective at removing pollutants in stormwater such as suspended solids and phosphorus. Sand is the most common filter material. In other filters, sometimes called "organic filters," wood chips or leaf mold may be used.

• Store in a cool, dry, ventilated area and in closed containers.
• Store above freezing.
• Keep away from oxidizers, sunlight, heat or flames.