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Hayward 30" Pro Series Side Mount Sand Filter W3S310S
Hayward 30" Pro Series Side Mount Sand Filter W3S310S
The Hayward ProSeries 30" Side Mount Sand Filter provides efficient, self-cleaning filtration, ensuring crystal-clear water with minimal maintenance for pools, ponds, and aquariums.
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The Hayward ProSeries W3S310S 30" Side Mount Sand Filter is engineered for superior pool water clarity and low-maintenance operation.
Featuring a precision-designed umbrella-fold self-cleaning lateral system, this filter ensures even water distribution, efficient flow, and balanced backwashing, extending its lifespan and keeping your pool pristine with minimal effort.
Ideal for above-ground pools, small in-ground pools, aquariums (salt or freshwater), and ponds, the ProSeries filter delivers consistent, high-performance filtration for years to come.
Designed for both top-mount and side-mount installations, this sand filter is a reliable, durable choice for anyone looking to maintain crystal-clear water with ease.

⭐⭐⭐⭐⭐
Customers praise the self-cleaning lateral system for even water distribution and crystal-clear pool water.
The balanced backwashing design keeps maintenance simple and effective.
Many reviewers note that this filter provides years of reliable service with minimal upkeep.
Works seamlessly for pools, aquariums, and ponds, making it a great multi-purpose investment.

- 30" Side-Mount Sand Filter – Large capacity for enhanced filtration efficiency.
- Umbrella-Fold Self-Cleaning Lateral System – Ensures even water flow and balanced backwashing for extended performance.
- Versatile Compatibility – Suitable for above-ground pools, small in-ground pools, aquariums (salt or freshwater), and ponds.
- Durable Construction – Built for long-lasting performance in any water environment.
- High-Efficiency Flow Design – Improves filtration effectiveness while minimizing maintenance.
- Top-Mount and Side-Mount Installation – Easy to integrate into various setups.

- Brand: Hayward
- Application: Inground, Ponds, Pool, Spa
- Shipping Dimensions: 32 x 32 x 48.3 inches
- Channel: Pool Equipment
- Commercial, Residential, or Professional: Residential
- Each Product Weight: 83 pounds
- Filtration Area: 4.91 square feet
- Filtration Rate: 98 GPM/ft²
- Master Carton Quantity: 1
- Maximum Working Pressure: 50 PSI
- Minimum Sell Quantity: 1
- Mounting Base: Injection-Molded Polymer
- Mounting Type: Side
- Side Clearance: 18 inches
- Vertical Clearance: 18 inches
- UPC Code: 0610377387798

Q: Does this filter come with a valve?
A: No, the Hayward ProSeries W3S310S is sold without a valve. Be sure to purchase a compatible multiport or slide valve separately based on your setup.
Q: How often should I replace the sand in this filter?
A: Sand typically needs replacement every 3–5 years, depending on pool usage and maintenance. Regular backwashing will help extend the sand’s lifespan.
Q: Can this filter be used for saltwater pools?
A: Yes! The ProSeries Sand Filter is compatible with both saltwater and freshwater pools, as well as aquariums and ponds.


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