The CSR 3600B ball valve retractable holder’s modular design accepts any 120 mm long, 12 mm diameter, PG 13.5 threaded sensor. The holder is one of the most universal retractable fittings on the market. In addition, the CSR 3600B also accepts the SE 655 and 656 toroidal conductivity sensors. Unlike other ball valve style holders, the CSR 3600B is ideal for quick-disconnect sensors. You will never have to pull the cable completely through the fitting when changing out the sensor. The CSR 3600B, ball valve retractable holder, allows for easy replacement of old sensor technology as well as an option for applications requiring insertion depths of up to 36 inches. The CSR 3600B can be constructed from several materials allowing for use in a wide variety of applications. The CSR 3600B is the ball valve retractable holder of choice when field installation requires a double block and bleed configuration.