American Standard Vacuum Breaker, High Back Pressure, For Use With: Selectronic® 6065.111/6066.111/6065.521/6065.121/6066.121/6065.525/6065.161/6066.161/6065.561/6065.721/6066.721/6065.565/6065.761/6066.761 Models 216 mm DC Powered Proximity Exposed Toilet Flush Valve, Specifications: 1 in, Polished Chrome, Import