Pentair COM Port Expansion Module with 1' Cable | IntelliCenter | 520818 Floating Islands the S8D110 requires 1 grid

the S8D110 requires 1 grid

Reduces maintenance cost and time

and the gasket provides the watertight seal between the lens and the light housing

white back

Aluminum back with high quality stainless steel bristles

Pentair COM Port Expansion Module with 1' Cable | IntelliCenter | 520818 Floating Islands the S8D110 requires 1 gridThe Pentair COM Port Expansion Module (520818) is the OEM communication port expansion component for the Pentair IntelliCenter pool and spa automation control system, supplied with a 1' cable. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED This is a mains voltage electrical control component. Installation or replacement must be performed by a qualified electrician or certified pool technician. Do not attempt to install this component without