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Hayward 21" Pro Series Sand Filter System with 1.5 HP Pump W3S210T93S
Hayward 21" Pro Series Sand Filter System with 1.5 HP Pump W3S210T93S
Powerful 21-inch Hayward ProSeries Sand Filter System with a 1.5 HP pump, designed for efficient filtration, energy savings, and hassle-free maintenance in above-ground pools.
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The Hayward ProSeries 21-Inch Sand Filter System is designed for superior filtration efficiency and energy savings. Ideal for above-ground pools, this durable and high-performance system includes a polymeric filter tank, 7-position VariFlo control valve, and a 1.5 HP PowerFlo Matrix pump to deliver crystal-clear water with minimal maintenance. Its top diffuser ensures even water distribution, while the large pressure sand/water drain allows for easy winterizing and servicing. With quick installation and powerful filtration, this system ensures your pool stays clean and inviting all season long.

⭐⭐⭐⭐⭐ 4.8/5 – Highly Recommended
Customers love the Hayward ProSeries 21" Sand Filter System for its reliability, efficiency, and ease of use. Many praise its powerful 1.5 HP pump for delivering strong circulation and clear water. Installation is straightforward, even for beginners, and the 7-position valve makes maintenance a breeze. Pool owners also appreciate the durable tank and high-quality construction, ensuring long-lasting performance. A few mention that sand replacement takes some effort, but overall, this system is a game-changer for keeping pools clean with minimal hassle.

✔ 21-Inch Polymeric Filter Tank – Corrosion-proof, weather-resistant, and built for long-term durability.
✔ 1.5 HP PowerFlo Matrix Pump – Strong, reliable, and energy-efficient for consistent water circulation.
✔ 7-Position VariFlo Control Valve – Allows easy selection of filtration, backwashing, rinsing, and other functions.
✔ Integral Top Diffuser – Ensures even water distribution over the sand bed for maximum filtration.
✔ Pump-to-Filter Union Connection – Simplifies installation and winterization.
✔ Large Sand/Water Drain – Quick drainage for hassle-free maintenance and winterizing.
✔ Deluxe One-Piece Base – Provides stability and easy mounting for both the pump and filter.
✔ 1.5-Inch Hose Package Included – Ensures a secure, efficient connection between components.

- Brand: Hayward
- Series: ProSeries
- Filter Type: Sand
- Tank Type: Polymeric Resin
- Pool Type: Above Ground
Performance & Flow Rates:
- Backwash Flow Rate: 44 GPM
- Design Flow Rate: 44 GPM
- Public Design Flow Rate: 44 GPM
- Residential Design Flow Rate: 44 GPM
- Turnover (10 Hours): 26,400 GPM
- Turnover (8 Hours): 21,120 GPM
- Maximum Working Pressure: 50 PSI
Dimensions & Weight:
- Effective Filtration Area: 2.2 SQFT
- Product Dimensions: 38" H x 20.5" L x 20.5" W
- Footprint: 20.5" x 20.5"
- Product Weight: 37 lbs
- Shipping Dimensions: 39.5" H x 21.2" L x 21.2" W
- Shipping Weight: 37 lbs
Capacity & Components:
- Sand Capacity: 200 lbs
- Drain Port Size: 1.5"
- Valve Included: 1.5" VariFlo 7-Position Valve
- Pressure Gauge: Yes
Installation & Clearance Requirements:
- Side Clearance for Filters: 18"
- Vertical Clearance for Filters: 18"
Warranty & Packaging:
- Parts Warranty: 2-Year
- Labor Warranty: None
- Master Carton Quantity: 1
- Pallet Quantity: 8
Additional Information:
- GTIN: 610377386951
- Cartridge Filter: No
- Number of Filter Elements: N/A


Q: How often do I need to change the sand in the filter?
A: On average, pool filter sand lasts 3-5 years before needing replacement. If you notice cloudy water, increased backwashing, or reduced flow rate, it may be time to change the sand.
Q: Is this system easy to install?
A: Yes! The pump-to-filter union connection and included hose package make setup simple. Most pool owners can install the system in under an hour with basic tools.
Q: What type of sand does this filter require?
A: This system requires #20 silica sand with a grain size of 0.45 to 0.55 mm. You’ll need approximately 200 lbs. of sand for optimal filtration.




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