1", Stainless Steel 200 WOG Threaded Swing Check Valve, Chicago Valves And Controls, Mfr#: 4266TE010$80.85+
1/2", Forged Steel Class 800 Piston Check Valve, FNPT, Chicago Valves And Controls, Mfr#: P484TE005$48.95+
Y-Check Valve, True Union, Spring-Loaded, 1-1/2", PVC/EPDM, Threaded, Adjustable 2-15 psi, Hayward Flow Control, Mfr#: SLC10150TEU$408.99+
3.0" EDF Check Valve 3-A 1 Pc Shutter, Pol, Clamp x Weld Conn, T316, VMQ; Ygros EDF-3A-CW-3.0-S-316, Springer Parts, Mfr#: EDF-3A-CW-3.0-S-316SP$3,365.99+
1/4" MNPT x FNPT Gray PVC Ball Cone Spring Check Valve, EnjoyTool Select, Mfr#: PVC CHK 426-4M4F-F$19.19+