The Pentair Tank O-Ring 39010200 is an OEM replacement designed to maintain a secure seal on Pentair Clean and Clear Plus, FNS Plus, and Quad DE filter systems. This O-ring prevents leaks at the clamp connection, ensuring proper pressure and efficient system performance. With an inside diameter of 20-1/8 inches and a thickness of 1/2 inch, it is precisely sized for reliable sealing across multiple Pentair filter models. Manufactured from durable rubber, it resists wear and stretching under pool conditions, helping to preserve filter integrity. Replacing worn O-rings with this OEM component protects water clarity and prevents pressure loss that can impact filtration.

• Crucial for Sealing: The Pentair 39010200 tank O-ring is a vital OEM part that prevents leaks at the filter tank clamp, maintaining correct system pressure and protecting circulation efficiency.

• Wide Compatibility: Fits Pentair Clean and Clear Plus cartridge filters, FNS Plus DE filters, and Quad DE filter systems, offering dependable use across multiple product lines.

• Durable Rubber Build: Constructed from resilient rubber material designed to withstand chlorine exposure, pressure fluctuations, and long-term system operation without failure.

• Precise Dimensions: Manufactured with a 20-1/8 inch inside diameter and 1/2 inch thickness, ensuring a tight, reliable fit that eliminates air and water bypass.

• Maintenance Essential: Regular replacement of this O-ring helps extend filter life by preventing pressure loss and maintaining efficient pool water filtration.

• (1)ÊPentair 39010200 O-Ring

• Pentair Clean and Clear Plus Filters
• Pentair FNS Plus Filters
• Pentair Quad DE Filters

Need help with the Pentair 39010200 Tank O-Ring for pool and spa filters? This section covers installation tips, troubleshooting leaks, and in-store availability so you can maintain the integrity of your Pentair filter system.

Installing the Pentair 39010200 O-Ring

This section explains how to properly install the tank clamp O-ring to ensure a secure and leak-free seal.

How do I install the Pentair 39010200 O-ring in a Clean and Clear Plus filter?

Can I buy the Pentair 39010200 O-ring in-store today?

Do I need to lubricate the O-ring during installation?

Should the O-ring sit in a specific groove before closing the clamp?

Troubleshooting Filter Leaks

Learn how to identify and fix common issues caused by worn or damaged tank O-rings.

Why is my Pentair FNS Plus filter leaking around the clamp?

Can a stretched or flattened 39010200 O-ring cause air leaks?

How do I know if the O-ring or the clamp is the problem?

Can Discount Pool Mart staff confirm if my filter needs this O-ring?

Finding the Right Part In Store

This section helps confirm compatibility and ensures youÕre getting the correct replacement O-ring before leaving the store.

How do I confirm the Pentair 39010200 fits my Quad DE filter?

Is the O-ring available for same-day pickup in-store?

Can staff match the O-ring to my specific Pentair filter model?

What other Pentair filter parts are stocked locally?