Groco STK1812V Sweettank Odor Neutralization System

Designed to stop odors in yacht and RV holding tanks without the use of chemicals or filters. Sweettank includes a constant flow of air into the holding tank through a submerged aeration tube. Uses less than 3-watts of DC power. For large yachts where AC power is always available, and AC powered Seettank module is offered. 12 volts.