Pentair | 154540Z | 12 In Sand Filter Lateral | Triton TR140/TR140C-3

The Pentair 154540Z lateral is a replacement internal component designed for Triton II and Triton C-series pool and spa sand filters. This 12-inch lateral installs in the filter underdrain assembly and distributes water evenly across the sand bed during filtration while preventing sand media from entering the return plumbing. It is commonly used in TR140, TR140C, and TR140C-3 filter systems to maintain proper filtration performance.

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Key Features

• Replacement 12-inch lateral designed for compatible Pentair Triton II TR140 and Triton C TR140C/TR140C-3 sand filters.
• Measures approximately 12 inches long with about 1-5/8 inch diameter and 1-1/4 inch male threaded connection.
• Distributes water evenly through the sand bed to maintain balanced filtration and prevent channeling.
• Slotted lateral design prevents sand media from entering the return plumbing during filtration cycles.
• Durable molded plastic construction resists pool chemicals, water pressure, and continuous filtration operation.
• Typically eight laterals are installed per filter to form the complete underdrain system.

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Product Overview

The Pentair 154540Z 12-inch lateral is a key component of the internal underdrain system used in Triton II and Triton C sand filters. Installed at the bottom of the filter tank, multiple laterals connect to the central hub assembly and extend across the tank floor to distribute incoming water evenly through the sand media.

During filtration, water passes through the sand bed where debris and particles are trapped. The lateral system then collects the filtered water and channels it back into the standpipe and return plumbing. Properly functioning laterals are essential for maintaining even water distribution, preventing sand from entering the circulation system, and ensuring efficient filtration performance in TR140 and TR140C-3 commercial sand filter systems.