Everbilt 3/4 in. Brass FPT Swing Check Valve 101-004EB - The Home Depot
Apollo 163S - 1-1/2" Sweat Bronze Swing Check Valve
Apollo 910FLW Series Cast Iron Swing Check Valve, Class 125, Bronze Seat, Lever Handle, 2" Flanged: Household Rough Plumbing Valves: Amazon.com: Industrial & Scientific
Apollo™ 34C10801 34C Thermostatic High Capacity Mixing Valve, 2 in Nominal, FNPT End Style, 150 psi Pressure, 1 gpm Flow, Bronze Body, Domestic | Cooney Brothers