RIDGID 45388 RM-200 Push Nut. The RM-200 is the largest of RIDGID's SeeSnake Camera Systems. This larger camera system combines portability with the versatility into a single machine that features a pull handle, two wheels, interchangeable drums, and different combinations of push cable stiffness and spring flexibility. The RIDGID 45388 RM-200 Push Nut is a Genuine replacement part manufactured specifically for RM-200 Camera Systems. The RIDGID 45388 RM-200 Push Nut is fully covered under RIDGID's 3-year limited performance warranty and lifetime warranty to be free of material defects.