Pentair COM Port Expansion Module with 1' Cable | IntelliCenter | 520818 C8416 Pro Tip: The C-2613's symmetrical

Pro Tip: The C-2613's symmetrical 1 1/16" inner diameter on both ends is designed to slide over a center core or standpipe within the housing

Bio-Dex Foam Stop is a Fast Acting Defoamer for the pool

and sensitive electronic sensors

Astral) or 8 full (Sta-Rite

When replacing the bypass valve

Pentair COM Port Expansion Module with 1' Cable | IntelliCenter | 520818 C8416 Pro Tip: The C-2613's symmetricalThe 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