The F20SK is a flow control valve manufactured by PNEUTROL INTERNATIONAL LTD. This valve features positive shut-off and free reverse flow capabilities, making it ideal for precise flow control applications. With its female to female connection and 1/4" NPTF sizing, it is easy to install and provides a secure fit. Made of carbon steel and equipped with a knob adjust feature, this valve offers durability and easy control. Perfect for various industrial applications, the F20SK ensures efficient and reliable flow control.