Pentair iS4 Topside Panel [100ft Cable] [Grey] (521886) prostar Supports more stable heater performance

Supports more stable heater performance

An O-ring is useful because it helps maintain dependable leak protection between mating surfaces while supporting cleaner reassembly of the heater

Supports CM4000

or no longer starting and running correctly

Pentair iS4 Topside Panel [100ft Cable] [Grey] (521886) prostar Supports more stable heater performanceThe Pentair 521886 iS4 topside panel is designed for compatible control applications and includes a 100 foot cable with a grey finish. A topside panel like this is useful because it provides a remote operating point for selected system functions, allowing convenient control from a more accessible location. Replacement is often appropriate when the original panel is worn, cracked, water damaged, or no longer responding properly. Installing the correct