SKU: 23632510113

PENTAIR COM PORT EXPASION MODULE - 520818

$87.57 $97.30
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

PENTAIR COM PORT EXPASION MODULE - 520818The Pentair COM Port Expansion Module 520818 is the essential upgrade component pool contractors need to maximize IntelliTouch and EasyTouch control system capabilities. This professional grade expansion module enables seamless integration of multiple Pentair accessories while providing reliable RS 485 communication for IntelliFlo pumps, making it indispensable for comprehensive pool automation installations. Commercial Installation Benefits Designed

The Pentair COM Port Expansion Module 520818 is the essential upgrade component pool contractors need to maximize IntelliTouch and EasyTouch control system capabilities. This professional-grade expansion module enables seamless integration of multiple Pentair accessories while providing reliable RS-485 communication for IntelliFlo pumps, making it indispensable for comprehensive pool automation installations.

Commercial Installation Benefits

Designed for professional pool contractors, this expansion module reduces installation complexity by providing three dedicated COM ports and four RS-485 terminals in a single unit. The complete kit includes all necessary mounting hardware, cables, and detailed installation guide, minimizing job site delays and ensuring consistent, professional results that protect your reputation.

Why Pool Contractors Choose MT Pools

MT Pools delivers superior customer service with expert technical support for complex automation projects. Our B2B wholesale pricing structure maximizes your profit margins while our reliable inventory ensures critical components like the 520818 are always available when your projects demand them.

Frequently Asked Questions

Is the 520818 compatible with older Compool systems?

Yes, the Pentair 520818 COM Port Expansion Module is specifically designed for Compool to EasyTouch upgrade systems, making it perfect for retrofit installations.

How many accessories can be connected simultaneously?

The module provides three 4-pin COM ports supporting multiple accessories including ScreenLogic, IntelliChlor, QuickTouch, and control panels, plus four RS-485 terminals for IntelliFlo pumps.

What electrical specifications should contractors know?

COM PORT A & B have a combined maximum of 14 VDC, 2.0A. The module includes detailed wiring pinouts and requires power disconnection during installation for safety.

Does MT Pools provide technical support for installation?

Yes, MT Pools offers superior customer service with expert technical guidance to help contractors successfully integrate the 520818 module into complex automation systems.

Order Today

Streamline your next automation project with the Pentair 520818 COM Port Expansion Module from MT Pools. Our team provides the technical expertise and reliable service that keeps your installations on schedule and profitable.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23632510113

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4.8 ★★★★★
Based on 13 reviews
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Verified Purchase
Tyler and Kaela
Fort Morgan, US
★★★★★ 5
Repurchased in King Size – Still Love These Cooling Pillows
Size: King (2 Count), Color: Original White (Cooling), Size: King (2 Count), Color: Original White (Cooling)
After using the queen-size version of these pillows for over a year, we purchased the king-size set when we upgraded to a king mattress. Both my husband and I really like them. The cooling feature works well, and we like that each side feels different—when I run cold, I use the softer bamboo side, while my husband prefers the cooler side since he tends to sleep hot. They fit well in our king-size pillowcases and feel supportive in all sleeping positions, whether I’m on my stomach, side, or back. I also appreciate that you can remove some of the filling to adjust the firmness. The covers are washable, which makes them easy to maintain. Overall, we’re very happy with this repurchase and the long-lasting comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
M
Verified Purchase
Mystery Fan
Waukegan, US
★★★★★ 3
Not great at cooling
Size: Queen (2 Count), Color: Original White (Cooling)
Each pillow cover has 2 sides, one marked for cooling, and the other a different fabric. The cooling side is about the same effectiveness as having a silk or satin pillow cover. It's only cool when you first touch it. The cooling side doesn't seem to absorb or wick moisture, so if you are sweaty - it keeps the moisture in place. You'll definitely want a regular pillow case over the pillow cover. In fact, if you suffer from night sweats, the non-cooling side is actually more comfortable. The pillow fill is ample, and simple to squish around for more support for your neck, etc. Think bean bag. But it will retain your impression after use. I find I need to do as I did when I had down pillows - give it a few good shakes in the morning when I make the bed to get it evened out for the coming night. In all, it is a well-made and comfortable pillow to sleep on, but it does not excel in cooling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
C
Verified Purchase
Carol C
Alexandria, US
★★★★★ 5
excellent pillows i bought two sets!!
Size: Firm Queen (2 Count), Color: Original White (Cooling)
I ordered these for my son who has neck issues and has gone through so many pillows trying to find one that he liked. They’re heavy, so i was worried that they might be “too” heavy to be able to sleep on comfortably, so I ordered a second set, one firmer than the other (just in case) and gave him a set for Xmas and he loved the first set so much without even trying the less firm ones.He also needs the cooling factor and these offered that, too. They are filled with pieces of memory foam (tons of it) and each pillow can be modified by removing some of the foam. The covers are beautiful, high quality fabric with a zipper so ts easy to remove or replace the foam pieces. The size is perfect and they keep their shape. I kept the second set i ordered rather than returning them and i love the pillows. I actually modified two by removing some of the foam pieces. I kept the foam pieces in a zippered pillow protector and i can always adjust mine when or if i need to. 1000% love these.
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Reviewed in the United States on March 22, 2026
A
Verified Purchase
Asha
West Palm Beach, US
★★★★★ 5
The Perfect Firm Pillow l
Size: Queen (1 Count), Color: Original White (Cooling)
It is everything it claims to be, cool, comfortable and strong. I got this for my husband first, he loves it and then got one for my son, he uses it to support his knees and has been sleeping much better since then. They both needed a firm pillow that is not super soft, firm but not achy. Finally found the perfect one.
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Reviewed in the United States on May 6, 2026
D
Verified Purchase
dbknittel84
Phoenix, US
★★★★★ 5
Very comfortable and stays cool on the blue side.
Size: Upgrade Queen (2 Pack)
Awesome pillow. So comfortable and soft. Stays cool all night long on the cool side.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

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