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ProSeries 30" Sand Filter - Top Mount (2" VariFlo Valve Included)

Hayward

SKU: S310T2

ProSeries™ filters are performance matched with our above-ground pump series to ensure a system that maximizes its filtration ability.

Features

ProSeries high-rate sand filters are molded of durable, corrosion-proof material for long-lasting performance. They feature attractive, unitized tank construction for years of trouble-free operation with only minimal care. ProSeries sets the standard for performance, value and dependability.

Features and Benefits

  • Flange clamp design allows 360° rotation of valve to simplify plumbing
  • Integral top diffuser ensures even distribution of water over the top of the sand media bed. Full-size internal piping provides smooth, free-flowing performance
  • Large pressure sand/water drain for rapid winterizing or servicing
  • Unitized, corrosion-proof filter tank molded of rugged, colorfast polymeric material for dependable, all-weather performance
  • 6- or 7-position Hayward® 2" VariFlo® control valve with easy-to-use lever-action handle lets you dial any of the valve/filter functions. Integral sight glass lets you see when backwash cycle is completed
  • 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.
  • 3+ Year Parts and Labor Warranties*

*When sold by a Hayward Rewards® partner. Exclusions, other terms and conditions may apply.

nsf certification logo

NSF Certified

NSF’s comprehensive inspection, testing and certification services ensure our products comply with all major state and provincial health codes, as well as model building and construction codes.

Application New Construction, Renovation, Aftermarket
Backwash Flow Rate 98 GPM
Brand Hayward
Cartridge No
Channel Expert Line
Design Flow Rate 98
Drain Port Size (Inches) 1.5
Effective Filtration Area 4.91 ft.²
Filter Type Sand
Footprint 30-1/2 x 30-1/2"
GTIN 610377547765
Warranty - Labor 1-year
Master Carton Qty 1
Maximum Working Pressure 50 PSI
Number of Filter Elements N/A
Pallet Qty 1
Warranty - Parts 3-year
Pool Type In Ground
Pressure Gauge Yes
Product Dimensions 48 " x 30.5 " x 30.5 "
Product Height 48 in
Product Length 30.5 in
Product Weight 68 lb
Product Width 30.5 in
Public Design Flow Rate 98 GPM
Residential Design Flow Rate 98
Sand Capacity 500 lbs.
Series Filters ProSeries
Shipping Dimensions 48.3 " x 32 " x 32 "
Shipping Weight 109.6 lb
Side Clearance - Filters 18"
Sub Brand N/A
Tank Type Polymeric Resin
Turnover - 10 Hours 58,800 GPM
Turnover - 8 Hours 47,040 GPM
Valve Included 2" VariFlo
Vertical Clearance - Filters 18"
Parts Details

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

Questions & Answers

15 answered question(s)

06/24/26

Q: My S310T2 tank ALSO has a crack at the seam...seems like a poly tank should hold up better. Confirm you do not sell the tanks separately?!? The valve works just fine.

A:
Hi we do not sell the tanks separately.

By Hayward Support

06/24/26

Q: I have a S244S filter. I purchased a new lateral assembly last year SX242MA1 but didn't put it in right away. When I took it out this month I realized I had to cut the bottom elbow to get it out and now I had to order a new bottom elbow. So I ordered the SX244CD2FW Bottom Elbow Assembly which looks identical to mine. But what two different companies sent me looks different than what I have and does not fit my lateral assembly. They say it is the "updated" part. But it doesn't fit the lateral assembly that I have. How do I get the bottom elbow that I need?

A:
Hi, someone from our Technical Service Department will contact you via email.

By Hayward Support

06/24/26

Q: Can I get just the sand tank , ours has a split at the seam on I do not want to purchase a entire filter with the valve

A:
Hi, we do not sell the tanks separately.

By Hayward Support

06/24/26

Q: is this filter good for a 30,000 gallon pool?

A:
Hi, filtration needs vary with location, and bather load, but in general this filter should be adequate. Contact a local Hayward Authorized Dealer for further assistance in choosing the right filter for your location. You can find a list of them by clicking...

By Hayward Support

06/24/26

Q: Can I use this filter with the Tristar950vs, 2” plumbing

A:
Yes you can!

By Hayward Support

06/24/26

Q: How do you change the sand in the pro series filter ??

A:
Hi, unless you are familiar with this product we recommend you allow a professional to do the sand change. You can find a list of them by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: What is normal operating psi for this filter

A:
Normal operating pressure is 10-20 psi

By Hayward Support

06/24/26

Q: I have a Hayward filter system that I want to convert to bio ball filtration. How do I decide how many balls I need to fill up the tank? Thank you very much

A:
You will need to contact the manufacturer of the bio ball you are planning to use. We only recommend #20 silica sand in our filters.

By Hayward Support

06/24/26

Q: is the S310T2 a direct swap out (will existing pipes need to be relocated) for the S310T?

A:
Hi, the S310T2 has a multiport valve that is designed for 2" plumbing. If you have 2" plumbing it will fit right up.

By Hayward Support

06/24/26

Q: SP071620T Control Valve Compatible with Hayward Pro Series Sand filter S310T2. I have S310T filter. Deas SP071620T Control Valve is correct for S310T filter as weel

A:
Hi, yes it will.

By Hayward Support

06/24/26

Q: Why would water leak from the base if my sand filter? I have changed the multi valve head and hoses. Thank you

A:
For help with this contact a local Hayward Authorized Service Center. You can find a list of them by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: Getting Ready to replace S310T Sand Filter with new S310T. I am going to use Glass media, which is what I had in my old unit. Do I need to put Pea gravel in the bottom? if so , how much? Thank you

A:
Hi, we only recommend #20 silica pool filter sand in our filters.

By Hayward Support

06/24/26

Q: We have a filter tank that spit on the bottom seam can you just replace tank or do you have to bye it compeat

A:
Hi, we do not sell the filter tanks separately.

By Hayward Support

06/24/26

Q: I have a 18 x 36 pool with around 27k gallons. Can I use this filter with 1.5” piping & a 2hp variable speed pump?

A:
Hi, I wouldn't recommend this configuration. You should contact a local Hayward Authorized Service Center for help with sizing. You can find a list of them by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: i need to talk to a rep so i will get the wright head for my falter it is a sand can you make that happen

A:
Hi, you can call our Tech Support Group by dialing 908-355-7995 Monday-Friday 8 AM-5 PM.

By Hayward Support