3" NPT Horizontal Swing Check Valve, Stainless Steel, Female Thread, DN80 | Non-Return One-Way Design, Prevent Backflow And Pumps, Low Pressure Drop,

2" NPT Horizontal Swing Check Valve, Brass, Heavy-Duty Female Thread, DN50 | Non-Return One-Way Design, Prevents Backflow, Protects Pumps, Low

FDAVDNMG Duckbill Inline Rubber Check Valve Duckbill Valve Non Return Check Valve Duckbill Check Valve Flexible Check Valve DN50-DN100(DN100)

Whale In-Line Check Valve 3/4''