1-1/2" NPT Brass Vertical Check Valve, NPT Thread Vertical Lead-Free In-Line Spring Check Valve, Non Return One Way Counterflow Valve to Prevent the Medium Backflow for Oil Water Gas Air DN40

1-1/2" NPT Brass Vertical Check Valve, NPT Thread Vertical Lead-Free In-Line Spring Check Valve, Non Return One Way Counterflow Valve to Prevent the Medium Backflow for Oil Water Gas Air DN40

TAISHER 10PCS Cast 304 Stainless Steel Hex Nipple, Pipe Fitting 1/2-Inch Male Pipe x 1/2-Inch Male Pipe

3/4 NPT Thread Spring Check Valve, Stainless Steel Non Return One Way Horizontal Check Valve, Vertical Inline Water Check Valve for Well, Pump, Tank, Backflow Prevention