![Shurflo by Pentair In-Line Check Valve - 1/2" Barbs [340-001]](http://allwatersmarine.com/cdn/shop/products/56141XL_{width}x.jpg?v=1576952757) 
          In-Line Check Valve - 1/2" Barbs
This check valve allows water to flow in only one direction helping to safeguard against back surge pressure up to 100 PSI.
Features:
-  Allows flow in one direction only
 
-  Safeguards against backsurge up to 100 PSI
 
- Small size, easy installation
