Tsunami Mk2 T500 Aerator - 12V - 90-Degree Inlet Keep bait and fish alive with the Tsunami Aerator Mk2. Attwood’s 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 in. x 3/4 in. thru-hull * Flexible installation with both 90 and straight inlets and outlets * Full backward compatibility with previous Tsunami models * Faster, smarter installation with no sealant or tools is required Specifications: * Flow Gallon/Hour: 500