Jandy R0487400 JS Series Sand Filter Lid Seal O-Ring

OEM Lid Seal for Jandy JS Series Sand Filters

The Jandy JS Series Sand Filter Lid Seal O-Ring (R0487400) is a genuine OEM replacement gasket designed to create a watertight seal between the filter tank and lid on Jandy JS series sand filters. This O-ring is critical for maintaining proper internal pressure, preventing water leaks, and ensuring safe, efficient filter operation.

Over time, sand filter lid seals can flatten, crack, or lose elasticity due to heat, pressure, and chemical exposure. Replacing a worn lid O-ring restores proper sealing and helps prevent air leaks, water seepage, and pressure loss.

This product is a pool sand filter lid seal O-ring, not a pump O-ring or generic gasket.

Designed Specifically for Jandy JS Series Filters

The R0487400 lid seal is engineered to match the exact dimensions and material requirements of Jandy JS series sand filters. Using the correct OEM seal ensures proper lid fitment and avoids sealing issues caused by incorrect aftermarket gaskets.

This O-ring is commonly used on:

• Jandy JS series sand filters

• Residential in-ground pool filtration systems

• Equipment pads using Jandy sand filtration

It is not universal and should only be used on compatible Jandy JS models.

Replacement seals like this are part of the Sand Filter Replacement Parts Collection.

Why the Lid Seal Matters

The lid seal is one of the most important gaskets on a sand filter. A compromised lid O-ring can lead to:

• Water leaks around the filter lid

• Air entering the filtration system

• Reduced filtration efficiency

• Difficulty maintaining prime

• Messy equipment pads

Replacing the lid seal restores proper pressure and prevents unnecessary stress on other filter components.

OEM Part R0487400 – Proper Fit & Seal

This lid seal is an OEM Jandy part, R0487400, designed to meet original manufacturer specifications.

OEM benefits include:

• Correct diameter and thickness

• Proper compression when lid is secured

• Chemical-resistant rubber compound

• Reliable long-term sealing performance

Using the correct OEM part helps prevent repeat leaks and premature gasket failure.

Built for Harsh Pool Environments

The Jandy R0487400 lid seal is manufactured from pool-grade elastomer designed to withstand:

• Continuous water pressure

• Chlorinated and saltwater pool systems

• Heat buildup inside filter tanks

• Seasonal temperature fluctuations

This durability makes it suitable for long service intervals when installed and maintained properly.

When to Replace Your Sand Filter Lid O-Ring

You should replace your lid seal if you notice:

• Water leaking around the filter lid

• Air bubbles returning to the pool

• Difficulty reseating the lid

• Visible flattening, cracking, or brittleness

Replacing the O-ring is a simple maintenance step that can prevent larger filtration issues.

Installation Tips

Installing the Jandy JS series lid seal is straightforward:

• Turn off the pump and relieve system pressure

• Remove the filter lid

• Remove the old O-ring

• Clean the O-ring groove thoroughly

• Lightly lubricate the new seal with pool-safe O-ring lubricant

• Install the new R0487400 lid seal and reseat the lid

Proper lubrication helps prevent pinching and extends gasket life.

Lubricants can be found in the Pool O-Ring Lubricants Collection.

Specs & Details

Works as Part of a Complete Filter System

A properly sealed lid helps the entire filtration system perform efficiently, working alongside components from the Pool Filters Collection and Pool Pump Systems Collection.

Maintaining seals and gaskets is one of the simplest ways to protect larger, more expensive equipment.

Buy with Confidence from Benchmark Pool Supply

At Benchmark Pool Supply, we stock genuine OEM pool filter seals and O-rings trusted by service professionals. The Jandy JS Series Sand Filter Lid Seal O-Ring (R0487400) ensures a proper seal, reliable operation, and long-term filtration performance.

When you buy from Benchmark Pool Supply, you get:

• Authentic Jandy replacement parts

• Pool-specific product expertise

• Local inventory and support

• Confidence buying from pool professionals

We help you keep your equipment sealed and running correctly.