Hayward S310S w/ Valve Swimming Pool Sand Filter

Side Mount Sand Filter

Hayward S310S Pro Series Sand Filter with Side Mount 6-position Hayward Vari-Flo control valve. Pro Series high-rate sand filters are the very latest in pool filter technology. Molded of durable, corrosion-proof polymeric material, they feature attractive unitized tank construction for years of trouble-free operation with only minimal care. Pro Series set a new standard for performance, value and dependability.


  • In-ground pools of all types and sizes
  • In-ground spas (residential or commercial)
  • Water features (fish ponds, fountains, water gardens)


  • Durable, flanged inspection cover provides convenient access to top of filter
  • Top diffuser ensures even distribution of water over the top of the sand media bed. All internal piping is 2" to give smooth, free-flowing performance
  • Automatic air relief purges any trapped air during operation of the filter system
  • Unitized, corrosion-proof, filter tank molded of rugged, colorfast polymeric material dependable, all weather performance
  • 6-position Hayward Vari-Flo control valve with easy-to-use lever-action handle lets you dial any of the 6 valve/filter functions. Integral sight glass lets you see when backwash cycle is completed
  • Efficient, multi-lateral underdrain assembly, with 360 degree slotted, self-cleaning laterals, gives totally balanced flow and backwashing
  • Integral molded drain plug for easy draining of tank without the loss of sand

Effective Filtration Area

Design Flow Rate*

Turnover (Gallons)

Sand Req'd

Dimensions **


8 Hours

10 Hours




98 GPM



500 lbs

30 1/2


76 lbs

  * Based on 20 GPM/ft2
** Above dimensions are for filter only. Add 12 for total height with valve



Model Number


Pipe Size

Valve Positions




2" FIP


6 lbs

This item is either too heavy or too large in volume to ship by any other method except by a common carrier truck line. Unlike UPS or FedEx, truck carriers will only deliver your order to your curb. Surcharges may apply if you live in a remote or inaccessible area. Click here to see more about truck deliveries.
Please allow 1-4 weeks for delivery.

Click here for a S310 Owners Manual.

Hayward S310S w/ Valve Swimming Pool Sand Filter - ID#:HAY-S310S
Mfg'd By: Hayward Industries, Inc.  SKU#:S310S
Regular Price: $1,050.99
Sales Price: $959.95
You Save $91.04 or 8.66%

Availability: Usually ships within 1-3 business days.

Last Updated: 07/31/2016 02:58 AM - ID:570