Product Overview

The Hayward ProSeries 27" Sand Filter Top Mount W3S270T is designed for reliable, high-performance residential pool filtration. Built with a durable corrosion-proof polymeric tank and an included 1-1/2" top-mount VariFlo multiport valve, this sand filter provides dependable water clarity with simple maintenance and long-lasting performance.

The 27-inch filter tank offers increased filtration capacity compared to smaller sand filters, making it a strong option for larger residential pool systems. Its internal diffuser evenly distributes water across the sand bed, while the precision-engineered lateral system supports balanced flow and efficient backwashing.

Ideal For

Residential in-ground swimming pools

Larger pool systems requiring a 27" sand filter

Pool owners looking for simple, low-maintenance filtration

Systems using 1-1/2" plumbing connections

Replacement for Hayward S270T / W3S270T style filters

Key Features

27" High-Rate Sand Filter Tank: The large 27-inch tank provides dependable filtration capacity and helps remove dirt, debris, and fine particles from pool water.

1-1/2" VariFlo Multiport Valve Included: The included top-mount VariFlo valve allows easy control of filter functions, including filter, backwash, rinse, waste, recirculate, closed, and winter settings.

Durable Corrosion-Proof Construction: The rugged polymeric tank is built to resist corrosion and provide long-lasting outdoor performance in pool equipment environments.

Even Water Distribution: The integral top diffuser distributes water evenly over the sand media bed for consistent filtration and improved overall performance.

Self-Cleaning Lateral System: Precision-engineered umbrella-fold laterals provide balanced water flow and efficient backwashing while helping reduce maintenance effort.

360-Degree Valve Rotation: The flange clamp design allows the valve to rotate 360 degrees, making installation and plumbing alignment easier.

Easy Service and Winterizing: A large pressure sand and water drain helps make servicing, draining, and winter preparation faster and more convenient.

Benefits

The Hayward W3S270T is a practical choice for pool owners who want strong filtration with straightforward maintenance. Sand filtration is easy to operate and backwash, making it a reliable option for everyday residential pool care.

With its 27" tank, 350 lb sand capacity, 3.7 sq. ft. filtration area, and 1-1/2" top-mount multiport valve, this model offers dependable performance for pool systems that need more filtration capacity than smaller 24" models.

Specifications

What’s Included

• Hayward W3S270T 27" ProSeries sand filter tank
• 1-1/2" top-mount VariFlo multiport valve
• Filter base
• Internal lateral assembly
• Pressure gauge

Pool filter sand is not included.

Customer-Facing Q&A

Q: Does this filter include the valve?
A: Yes. The Hayward W3S270T includes a 1-1/2" top-mount VariFlo multiport valve.

Q: How much sand does this filter require?
A: This filter requires 350 lbs. of #20 silica pool filter sand.

Q: Is the sand included?
A: No. Filter sand must be purchased separately.

Q: What is the difference between W3S270T and W3S270T2?
A: The W3S270T includes a 1-1/2" top-mount valve, while the W3S270T2 version is typically supplied with a 2" top-mount valve.

Q: Is this filter suitable for larger residential pools?
A: Yes. The 27" tank and 350 lb sand capacity make this model suitable for larger residential pool systems when properly matched to the pump, plumbing, and pool size.

Q: How do I clean this filter?
A: Cleaning is done by backwashing through the multiport valve. Backwash when the pressure gauge rises approximately 8–10 PSI above the clean starting pressure.

Q: Does this filter include a pressure gauge?
A: Yes. A pressure gauge is included.