Hayward W3S180T Pro Series Sand Filter – 18" Tank with 7-Position Top-Mount Valve

Key Features

• Efficient 7-Position Valve: Top-mount Vari-Flo™ control valve lets you easily switch between filter, backwash, rinse, waste, recirculate, closed, and winter settings.
• 18-Inch Weather-Resistant Tank: Injection-molded, corrosion-proof construction stands up to the elements and pool chemicals.
• Crystal-Clear Water Filtration: Removes particles as small as 20 microns for a consistently clean and clear pool.
• Low Maintenance Sand System: Requires changing sand only once every 3–5 years for easy upkeep.
• Perfect for Mid-Size Pools: Ideal for above-ground and small in-ground pools up to ~15,000 gallons.

Product Overview

The Hayward W3S180T Pro Series Sand Filter is a trusted, cost-effective pool filtration system designed for above-ground and small in-ground pools. With its durable, all-weather tank and top-mounted Vari-Flo™ valve, the S180T makes it easy to maintain your pool water clarity with minimal effort. The high-capacity 18-inch tank uses 150 pounds of #20 silica sand (not included) and provides consistent flow and excellent filtration throughout the season.

Specifications

• Model: S180T
• Tank Diameter: 18 inches
• Filtration Area: 1.75 sq. ft.
• Max Flow Rate: 35 GPM
• Valve Type: 7-Position Top-Mount Vari-Flo
• Required Sand: 150 lbs. (not included)
• Plumbing Size: 1.5” connections
• Applications: Above-ground and small in-ground pools

What’s Included

• Hayward W3S180T 18” Sand Filter Tank
• 7-Position Top-Mount Valve (SP0714T)
• Pressure Gauge & Drain Cap
• User and Installation Manual
• *Filter sand sold separately

Why Buy From Best Buy Pool Supply?

• Authorized Hayward Dealer 
• Fast shipping
• Expert support available to help with sizing or setup

Shipping & Returns

• Shipping: Typically ships in 1–2 business days
• Returns: 30-day return policy for unused/unopened items

Have Questions About This Filter?

Give us a call at (800) 877-1268 or click here to speak with a pool equipment expert. We’ll help ensure this filter is the right fit for your pool and pump.