Hayward ProSeries S310T2
#1 in SandFull review
A low-priced top-mount sand filter for an in-ground pool of up to about 47,040 gallons. It suits owners who want easy backwashing over the finest filtering.
Amazon $1,219$1,219
The Hayward ProSeries S310T2 is the better pool filter overall, rated 3.9 to 3.2. The Hayward ProSeries S310T2 leads on value. The Hayward ProSeries S310T2 costs $280 less ($1,219 vs $1,499).
Pentair Triton II TR100
#7 in SandFull review
A heavy-duty fiberglass sand filter for an in-ground pool where the equipment pad needs a side-mount valve. It costs more than a top-mount and needs a valve bought separately.
Amazon $1,499$1,499
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Hayward ProSeries S310T2 for value ($12.44 per gpm ($1,219, 98 gpm) vs $20.26 per gpm ($1,499, 74 gpm)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every sand pool filter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Hayward ProSeries S310T2 | Pentair Triton II TR100 |
|---|---|---|
| Overall rating | 3.9/5 | 3.2/5 |
| Value 35% | 39 $12.44 per gpm ($1,219, 98 gpm) | 0 $20.26 per gpm ($1,499, 74 gpm) |
| Filter area 30% | 97 4.9 sq ft of filter area | 97 4.9 sq ft of filter area |
| Valve 10% | 100 multiport valve | 50 valve type not published (neutral score used) |
| Pressure rating 10% | 100 50 psi maximum working pressure | 100 50 psi maximum working pressure |
| Warranty 15% | 33 1-year warranty | 33 1-year warranty |
Specifications
| Hayward ProSeries S310T2 | Pentair Triton II TR100 | |
|---|---|---|
| Filtering | ||
| Filter type | Sand | Sand |
| Filter area | 4.9 sq ft | 4.9 sq ft |
| Maximum flow | 98 gpm | 74 gpm |
| Largest pool | 47,040 gal | 35,520 gal |
| Pool type | In-ground | In-ground |
| Sand | 500 lb | 600 lb |
| Build | ||
| Tank diameter | - | 30 in |
| Valve | Multiport | - |
| Maximum pressure | 50 psi | 50 psi |
| Ports | 2 in | - |
| Air relief | - | Yes |
| Warranty | 1 year | 1 year |