Home » Pentair | 191322 | ST40/ST50 D.E. Filter Grid | 19-3/4 In

Pentair | 191322 | ST40/ST50 D.E. Filter Grid | 19-3/4 In

Out of stock
SKU: 191322
Length: 21 in Width: 21.5 in Height: 21.5 in
$44.99

The Pentair 191322 filter grid is a replacement filtration element designed for Pentair Star and Star Polymeric ST40 and ST50 pool and spa D.E. filter systems. Measuring 19-3/4 inches, this full grid supports the diatomaceous earth filtration process by trapping fine debris and contaminants from circulating pool water. It is constructed with durable filter fabric over a reinforced frame to ensure efficient filtration and long service life.

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Key Features

• Replacement full filter grid designed for Pentair Star and Star Polymeric ST40 and ST50 D.E. filter systems.
• 19-3/4-inch grid size provides proper fit within compatible D.E. filter grid assemblies.
• Designed to hold diatomaceous earth media which captures fine dirt, algae, and debris.
• Reinforced internal frame and polyester filter fabric support durability and consistent filtration performance.
• Helps maintain clear pool water by trapping particles as small as a few microns.
• Typically four grids are required per ST40 or ST50 filter system for complete filtration assembly.

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Product Overview

The Pentair 191322 filter grid is an essential filtration component used in Pentair Star and Star Polymeric ST40 and ST50 D.E. pool filters. Each grid forms part of the internal grid assembly that supports the diatomaceous earth filtration media. As water flows through the filter, the D.E. coating on the grid captures fine contaminants and debris before the water returns to the pool.

With a 19-3/4-inch design and reinforced frame construction, the grid is engineered to provide durable filtration performance while maintaining efficient water flow through the system. Multiple grids work together inside the filter tank to provide the full filtration surface area required for effective pool water cleaning. Replacing worn or damaged grids restores filtration efficiency and helps maintain proper water clarity and circulation performance.