This Curl Lockout Valve for CTC is a companion to the OEM or AuxHyd lockout valve. The tractor mounted lockout valve controls the rear rockshaft when the operator needs to use the front end loader, the Curl Lockout controls the CTC front end loader curl when the operator needs to use the rear rockshaft (three-point hitch). This valve allows for convenient easy-to-reach control of the CTC loader curl circuit. This valve is intended to be installed in the line running to the curl back side of the bucket curl circuit on your CTC loader.