A cable spring helps support strain relief or controlled movement at a compatible cleaner cable connection point, and this Maytronics Dolphin version uses the 3917015 reference. Cable-related spring components are useful because they can help reduce stress concentration where the cable enters or moves through the cleaner system.This part has practical value because protecting the cable at critical bend or connection points can help support longer cable life and more consistent cleaner operation. A properly matched Maytronics cable spring helps preserve the intended support behavior of the original cable assembly.This type of part is especially useful when servicing a cable assembly that has lost some of its original support hardware or where the spring has worn, broken, or gone missing. That helps keep the cable repair more complete and better matched to the original setup.Installed in the proper application, this cable spring helps support cleaner cable protection and more dependable long-term operation. Cable spring for compatible Maytronics Dolphin cleaner applications Helps support cable strain relief or controlled movement Useful during cable repair or replacement work Supports longer cable life and cleaner reliability Improves repair completeness and cable protection