Pentair 357099Z Square Seal-Plate O-Ring for IntelliPro / Max-E-Pro Pumps – Intellipro Variable Speed Pump Pre 2019 Parts And Accessories

Pentair 357099Z Square Seal-Plate O-Ring for IntelliPro / Max-E-Pro Pumps

OEM Pentair 357099Z square seal-plate O-ring for IntelliPro / Max-E-Pro pumps. Great for stopping leaks and keeping seal integrity.

Features

• Genuine Pentair square O-ring designed for the seal plate of IntelliPro VS, Max-E-Pro, and IntelliPro series pumps. :contentReference[oaicite:5]{index=5}
• Prevents leaks around the seal plate, protecting the motor and internal pump parts. :contentReference[oaicite:6]{index=6}
• Chemical-resistant elastomer material holds up under pool water conditions. :contentReference[oaicite:7]{index=7}
• Square profile ensures correct mating, reducing the risk of seal failure. :contentReference[oaicite:8]{index=8}
• Easy and low-cost maintenance part that restores pump performance without a significant overhaul.

Description

This Pentair 357099Z seal-plate O-ring is a small but critical component of your IntelliPro VS / Max-E-Pro pump’s sealing system. Designed to fit the square groove on the seal plate, this O-ring stops water from leaking into areas that can damage the motor or electronics. Its material is designed to withstand heat and exposure to pool chemicals, making it a reliable part that can be replaced regularly. A properly seated O-ring restores your pump’s pressure and helps maintain quieter, efficient operation.

Pro Tip

Always power off and lock out the pump before opening. Clean grooves and mating surfaces before inserting the new 357099Z square O-ring. Use a thin coat of pool-safe grease or silicone to help seat the O-ring. While performing this maintenance, inspect the diffuser and impeller; if they are worn or scored, replacing them now will save future repairs.

Installation Tips

Ensure the pump is disconnected from power before servicing. Check that the groove for the seal plate is clean and smooth. Lubricate the O-ring lightly with appropriate pool-safe lubricant. Seat the O-ring fully and evenly to avoid twists or misalignment, which cause leaks.