This listing is for a Garmin GT30-TM and GT8HW-IH Transducer Bundle.  Part number: 010-12763-00.  This is brand new in the box. This kit includes both transducers and the y-cable.  This transducer bundle is ideal for fiberglass hulls where fishermen want traditional sonar at high speeds. This kit lists for $314.99.  I will ship to the lower 48 via UPS ground for FREE.