Pondmaster® 7" Diameter Ring Air Diffuser ProEco Products air is injected into the

air is injected into the bottom of the filter

nitrification

NOTE:  If replacing the 2" Spider Gasket the old gasket must be completely removed though it was originally glued in place and the new spider gasket must be glued in place using a fast drying Rubber Gasket Adhesive

Designed for external use with saltwater or freshwater aquariums

Reapply every 3 weeks for best results

Pondmaster® 7" Diameter Ring Air Diffuser ProEco Products air is injected into theThe Pondmaster 7" Diameter Ring Air Diffuser has a total length of 18" and has 48" square inches of active surface area. It is designed for use with the Pondmaster AP 40, AP 60 and AP 100 air pumps. The recommended tubing sizes are 3 4" or 1", but no tubing is included with the diffuser. Instructions