Hayward | W3S270T | ProSeries 27" Sand Filter Top Mount

The Hayward W3S270T ProSeries 27" Sand Filter (Top Mount) is a high-performance filtration solution designed for medium-to-large in-ground pools. Built with a corrosion-proof polymer tank and advanced self-cleaning underdrain technology, it delivers consistent water clarity with minimal maintenance. Its top-mount configuration offers straightforward operation, making it an ideal choice for both new installations and system upgrades.

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Key Features

• 27" tank diameter for medium-to-large pool filtration needs

• Top-mount multiport valve for simple control and easy operation

• 360° self-cleaning underdrain ensures balanced water flow and maximum efficiency

• Corrosion-proof, precision-molded polymer tank for long-term durability

• Integral diffuser for even water distribution over the sand bed

• Uses standard #20 silica sand (not included)

• Large sand/water drain for quick servicing and winterizing

• Easy-to-read pressure gauge for accurate system monitoring

• Quiet and energy-efficient operation

• Suitable for residential and light commercial applications

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Product Overview

The Hayward W3S270T ProSeries 27" Sand Filter combines durable construction with advanced filtration performance to keep pool water sparkling clean. Its top-mount design provides easy access to the multiport valve for smooth operation, while the self-cleaning underdrain and integral diffuser maximize water flow and filtration efficiency. Designed to resist corrosion from pool chemicals and harsh outdoor conditions, this filter delivers dependable, season-long performance. Ideal for pool owners seeking a reliable, low-maintenance solution, it ensures crystal-clear water with less effort.