ProSeries Plus 30" Sand Filter - Side Mount

Hayward

SKU: S311SXV

With all the ProSeries advanced features, ProSeries Plus filters are designed to meet the needs of the most demanding applications including large residential and semi-commercial pools, in-floor cleaning systems, solar heating systems and water features.

Features

Incorporating the many advanced features of ProSeries top-mount and side mount sand filters, the ProSeries Plus satisfies the requirements of the most demanding installations, including pools installed with in-floor cleaning systems, spas, fountains or solar heating systems.

Features and Benefits

  • Durable, flanged inspection cover provides convenient access to top of side mount filters
  • Flange clamp design allows 360° rotation of valve to simplify plumbing
  • 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
  • Large pressure sand/water drain for rapid winterizing or servicing
  • Unitized, corrosion-proof, spherical filter tank molded of rugged, colorfast polymeric material for maximum strength and longer life
  • Optional valve and coupling selections for plumbing ease and versatility. Choose from 6-position VariFlo® valve, 2-position slide valve or 1 1⁄2" SKT x 2" SLIP connectors for multiple (tandem) filter installations
  • Precision engineered umbrella-fold self cleaning laterals for balanced flow and backwashing, plus easy serviceability
  • EXPERT LINE products can only be purchased through your local pool professional or in-store.  Exclusions, other terms, and conditions may apply.

Exclusions, other terms and conditions may apply.

Application New Construction
Backwash Flow Rate 374.7556 LPM
Brand Hayward
Cartridge No
Channel Expert Line
Design Flow Rate 99
Effective Filtration Area 4.95 ft.²
Filter Type Sand
GTIN 610377056892
Warranty - Labor None
Master Carton Qty 1
Number of Filter Elements N/A
Pallet Qty 1
Warranty - Parts 3-year
Pool Type In Ground
Pressure Gauge Yes
Sand Capacity 350 lbs.
Series Filters ProSeries Plus
Shipping Dimensions 37 " x 31 " x 31 "
Shipping Weight 84 lb
Tank Type Polymeric Resin
Turnover - 10 Hours 59,400 GPM
Turnover - 8 Hours 47,520 GPM
Valve Included 2" Slide Valve
Parts Details

Click on the part number in the diagram to display the details.

Questions & Answers

2 answered question(s)

06/24/26

Q: I have a S311SX sandwich filter. Om the backflush valve, the top nit has split. How do I get a replacement? Thank you.

A:
We do not sell directly, but you can find a local Hayward Authorized Dealer by clicking on the Dealer Locator tab on our home page of our website, Hayward.com Link to dealer locator: https://hayward.com/dealerlocator

By Hayward Support

06/24/26

Q: I currently own a model s311sxv that was manufactured in 2018. The rank itself ruptured, when the tank flange split/separated from the tank body under normal operating conditions, 35psi, with smooth/free discharge. I would like to replace the tank body. Question: How do I get a replacement tank directly from Hayward?

A:
Hi, we do not sell direct. You can find a list of local Hayward Authorized Dealers by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support