Swimables SW-25-400 DE Filter Spreader

Restore Proper DE Distribution and Filtration Performance

The Swimables DE Spreader (SW-26-400) is a replacement internal component designed for DE (diatomaceous earth) pool filters that rely on even DE coating across the filter grids. The DE spreader plays a critical role in directing incoming DE slurry evenly throughout the filter tank, ensuring proper filtration, pressure balance, and overall system efficiency.

A cracked, warped, or missing DE spreader can lead to uneven grid coating, short filter cycles, and poor water clarity.

This product is a pool filter internal replacement part, engineered specifically for swimming pool filtration systems.

What a DE Spreader Does Inside a Pool Filter

Inside a DE filter, the spreader sits above the grid assembly and helps disperse DE evenly as it enters the tank. When functioning correctly, it:

• Distributes DE evenly across all grids

• Prevents channeling or clumping

• Supports consistent filtration pressure

• Helps maintain clear, polished water

When the spreader fails, DE may settle unevenly, causing premature pressure rise and reduced filtration effectiveness.

Designed for FNS-Style DE Filter Systems

The SW-26-400 DE spreader is built in a Pentair FNS-style configuration, making it compatible with many common DE filter systems that use a center-mounted grid assembly.

This part is commonly serviced alongside components found in the DE Pool Filters Collection and Pool Filter Replacement Parts Collection.

Always confirm your filter model and internal layout before ordering.

Common Symptoms of a Failed DE Spreader

A worn or damaged DE spreader can cause noticeable performance issues, including:

• Uneven DE coating on grids

• Rapid pressure increase after recharging DE

• Reduced water clarity

• Shortened filter run cycles

• DE bypass or internal buildup

Replacing the spreader is often necessary when rebuilding or servicing older DE filters.

Built for Harsh Pool Environments

The Swimables DE spreader is manufactured from pool-rated materials designed to withstand:

• Constant water flow and pressure

• Chlorinated and saltwater pools

• Seasonal temperature fluctuations

• Repeated filter tear-downs

This ensures long-term reliability inside the filter tank.

Ideal for Filter Rebuilds and Seasonal Service

DE spreaders are commonly replaced during:

• Full DE filter rebuilds

• Grid replacement jobs

• Annual filter maintenance

• Pressure troubleshooting service calls

Service professionals often replace the spreader preventatively when grids or manifolds are already removed.

This part pairs naturally with DE filter manifolds, grid assemblies, and air relief components found in the Pool Equipment Parts Collection.

Helps Protect Filter Grids and Extend Filter Life

Uneven DE distribution places uneven load on filter grids, which can lead to:

• Premature grid wear

• Torn fabric

• Internal cracking

• Reduced filtration lifespan

Installing a properly functioning DE spreader helps protect the entire grid assembly and maintain consistent performance.

Installation Notes

General service considerations include:

• Remove grid assembly before installation

• Inspect for cracks or warping before reuse

• Ensure correct seating over the standpipe

• Reassemble filter carefully before recharging DE

Professional installation is recommended during full filter service.

Specs & Details

Compatible with Professional Pool Maintenance

The Swimables DE spreader is commonly installed alongside other internal components such as DE filter manifolds, air bleeder assemblies, and grid sets found in the Pool & Spa Filters Collection.

Replacing internal components together often restores like-new filtration performance.

Buy with Confidence from Benchmark Pool Supply

At Benchmark Pool Supply, we stock trusted DE filter replacement parts used by service professionals and experienced pool owners. The Swimables SW-26-400 DE spreader is a reliable solution for restoring proper DE distribution and filtration efficiency.

When you buy from Benchmark Pool Supply, you get:

• Pool-specific expertise

• Proven aftermarket replacement parts

• Local inventory and fast availability

• Confidence buying from pool professionals

We help keep your filtration system performing at its best.