Similar to the 1/4″ 4-in-1 core tool but with 5/16″ flare fittings. For use with R-410A systems and mini splits with larger 5/16″ service ports. Made in the USA.
5/16″ 4-in-1 Ball Valve Tool (for R-410A systems with 5/16″ access ports)
![4-in-1-ball valve tool](https://yellowjacket.com/wp-content/uploads/2015/02/516-4-in-1-ball-valve-tool-r-410a-systems-968x536.jpg)
Similar to the 1/4″ 4-in-1 core tool but with 5/16″ flare fittings. For use with R-410A systems and mini splits with larger 5/16″ service ports. Made in the USA.