\"Fits Lowrance and Simrad models with blue connector. Airmar has taken the SS270W wide-beam thru-hull and split it into a pair of Tilted Element transducers. One transducer handles 50 kHz while the other operates at 200 kHz. The low-profile design is perfect for fast, trailered, tournament, and sportfishing boats—especially center consoles. Transducers must be purchased separately for dual-frequency operation or individually as a single-frequency unit.\" « less