T-H Marine HydroWave H2 System Catfish Edition [HW-PKG-H2CAT]HydroWave H2 System Catfish Edition The HydroWave H2 Catfish Edition builds on the success of the original HydroWave and now offers several key new upgrades. Now featuring 9 sound patterns for added versatility, the new HydroWave H2 Catfish Edition also now offers five pre programmed delay options ranging from 15 to 120 seconds. A new, larger 2. 5 LCD screen makes operation even easier, and the H2 also features a new, sleek look. Even easier to use