Product Overview

The Hayward ProSeries 27" Sand Filter Top Mount W3S270T2 is designed for dependable, high-capacity residential pool filtration. Built with a rugged corrosion-proof polymeric tank and an included 2" top-mount VariFlo multiport valve, this sand filter delivers strong flow performance, simple operation, and reliable water clarity.

The 27-inch tank provides increased filtration capacity for larger residential pool systems, while the 2" valve is ideal for pool setups using larger plumbing connections. Its internal diffuser distributes water evenly across the sand bed, and the self-cleaning lateral system supports efficient filtration and balanced backwashing.

Ideal For

Residential in-ground swimming pools
Larger pool systems requiring a 27" sand filter
Pool owners upgrading to a 2" valve configuration
Systems using 2" plumbing connections
Replacement for Hayward S270T2 / W3S270T2 style filters

Key Features

27" High-Rate Sand Filter Tank

The large 27-inch tank provides strong filtration capacity and helps remove dirt, debris, and fine particles from pool water.

2" VariFlo Multiport Valve Included

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

Durable Corrosion-Proof Construction

The unitized filter tank is molded from rugged, colorfast polymeric material for dependable outdoor performance.

Full-Flow Internal Design

Full-size internal piping supports smooth, free-flowing performance for efficient pool water circulation.

Even Water Distribution

The integral top diffuser distributes water evenly across the sand media bed for consistent filtration and improved performance.

Self-Cleaning Lateral System

Precision-engineered umbrella-fold laterals provide balanced flow, efficient backwashing, and long-lasting operation.

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 W3S270T2 is a strong option for pool owners who want reliable filtration with easy maintenance. Sand filters are simple to operate and clean by backwashing, which makes them a practical choice for everyday pool care.

With its 27" tank, 350 lb sand capacity, 3.7 sq. ft. filtration area, and 2" top-mount valve, this model is ideal for systems that need greater flow compatibility than a 1-1/2" valve version.

Specifications

What’s Included

Hayward W3S270T2 27" ProSeries sand filter tank
2" top-mount VariFlo multiport valve
Filter base
Internal lateral assembly
Pressure gauge

Pool filter sand is not included.

Customer-Facing Q&A

Does this filter include the valve?

Yes. The Hayward W3S270T2 includes a 2" top-mount VariFlo multiport valve.

How much sand does this filter require?

This filter requires 350 lbs. of #20 silica pool filter sand.

Is the sand included?

No. Filter sand must be purchased separately.

What is the difference between W3S270T and W3S270T2?

The W3S270T2 includes a 2" top-mount valve, while the W3S270T version is commonly supplied with a 1-1/2" top-mount valve.

What is the flow rate?

The Hayward W3S270T2 has a listed flow rate of 74 GPM.

Is this filter suitable for larger residential pools?

Yes. The 27" tank, 350 lb sand capacity, and 2" valve make it a strong choice for larger residential pool systems when properly matched with the pump, plumbing, and pool requirements.

Does this filter include a pressure gauge?

Yes. A pressure gauge is included.

How do I clean this filter?

Cleaning is done by backwashing through the multiport valve. Backwash when the pressure gauge rises approximately 8–10 PSI above the clean starting pressure.