Pentair | 24900-0002 | Sta-Rite 21 In Lateral Assembly | Sand Filter Replacement

The Pentair 24900-0002 lateral assembly is a replacement internal component designed for Sta-Rite pool and spa sand filter systems. This 21-inch lateral installs in the filter’s underdrain assembly and distributes water evenly through the sand media during filtration. Its slotted design allows filtered water to pass while preventing sand from entering the return plumbing, supporting efficient filtration performance.

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Key Features

• Replacement 21-inch lateral assembly designed for Sta-Rite sand filter systems.
• Installs in the filter underdrain assembly to distribute water evenly through the sand bed.
• Slotted lateral design allows filtered water to pass while preventing sand media from entering the return line.
• Helps maintain balanced filtration and efficient debris removal.
• Durable molded construction resists pool chemicals, filtration pressure, and long-term operation.
• Ideal replacement component when original lateral assemblies become cracked, clogged, or worn.

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Product Overview

The Pentair 24900-0002 Sta-Rite lateral assembly is an essential part of the internal underdrain system used in sand filtration systems. Positioned at the bottom of the filter tank, the lateral works with the central hub and additional lateral arms to distribute incoming water evenly across the sand media.

During filtration cycles, water flows through the sand bed where debris and contaminants are captured. The lateral system then collects the filtered water and directs it back through the standpipe and outlet plumbing. Replacing a damaged or worn lateral assembly restores proper water distribution and helps ensure reliable filtration performance in Sta-Rite sand filter systems.