InSinkerator SS-100-5-AS101 SS-100™ Complete Disposer Package, sink mount system, with #5 adaptor for 3.5" to 4" sink opening, with long upper housing, 1 HP motor, stainless steel construction, includes syphon breaker, (2) solenoid valves, (2) flow control valves, programmable AquaSaver® control center AS-101 with water-saving technology, automatic water saving function, auto reversing, timed run, post flush