Attwood Tsunami Mk2 T1200 Aerator - 12V - 90-Degree Inlet [5664-4]Tsunami Mk2 T1200 Aerator 12V 90 Degree Inlet Keep bait and fish alive with the Tsunami Aerator Mk2. Attwoods leading fish friendly technology is making it easier to install and service while offering new installation options never provided by the Tsunami range. Features: 3 1 2" x 1 1 8" thru hull Flexible installation with both 90 and straight inlets and outlets Full backward compatibility with previous Tsunami models Faster, smarter installation