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.

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

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.