11 Ago Crest 4CI-928-12 DBB Ultrasonic Immersible Transducers, 40 kHz GEN | AB 604260
These units have two bottom side mounts where ultrasonic RF cables connect at ½” MNPT fittings. I also have a set of cables not pictured. The power sources and tanks are for sale in different listings. If anyone is interested in a package deal I...