Hayward ProSeries Sand Filter Inground 24 In Top Mount 1.5 Inch Valve
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Hayward ProSeries W3S244T 24-Inch Top-Mount Sand Filter with 1.5-Inch Valve for In-Ground Pools
The W3S244T is the 24-inch ProSeries top-mount filter with a 1.5" Vari-Flo valve. At 3.14 sq ft of filtration area, 300 lbs of sand, and a 62 GPM flow ceiling, it handles a wide range of residential in-ground pools and is one of the most commonly specified ProSeries sizes. If your pump output at operating head consistently approaches or exceeds 62 GPM, or if your plumbing uses 2-inch pipe throughout, the W3S244T2 with a 2-inch valve is the better match.
Hayward W3S244T ProSeries 24-Inch Sand Filter Key Features
- 24-inch tank with 3.14 sq ft of filtration area - 300 lbs of sand and a 62 GPM flow ceiling give this filter substantial capacity for mid-to-large residential in-ground pools. Larger sand bed means longer intervals between backwash cycles at equivalent pool sizes compared to the 21-inch model.
- 7-position 1.5" Vari-Flo top-mount valve - Filter, Backwash, Rinse, Waste, Recirculate, Closed, and Winter. Integral sight glass and 360-degree flange clamp rotation for flexible plumbing alignment.
- Integral top diffuser - Even water distribution across the full sand surface for maximum filtration efficiency.
- 360-degree self-cleaning laterals - Full-flow slotted design for energy-efficient operation and balanced backwashing.
- Full-size internal piping - Smooth internal flow path minimizes head loss through the filter body.
- Corrosion-proof reinforced thermoplastic tank - Durable all-weather construction for permanent outdoor installation.
- Large pressure sand/water drain - Fast tank drainage for winterizing or sand replacement.
Hayward W3S244T ProSeries 24-Inch Sand Filter Specifications
Sand not included. Use #20 grade silica pool filter sand only.
Hayward ProSeries In-Ground Sand Filter Lineup: W3S244T in Context
| Model | Tank | Mount | Sand | Flow Rate | Valve |
|---|---|---|---|---|---|
| W3S210T | 21 in. | Top | 200 lbs | 44 GPM | 1.5" included |
| W3S210S | 21 in. | Side | 200 lbs | 44 GPM | 1.5" included |
| W3S220T | 22 in. | Top | 250 lbs | 52 GPM | 1.5" included |
| W3S244T (this model) | 24 in. | Top | 300 lbs | 62 GPM | 1.5" included |
| W3S244T2 | 24 in. | Top | 300 lbs | 62 GPM | 2" included |
| W3S270T | 27 in. | Top | 350 lbs | 75 GPM | 1.5" included |
| W3S270T2 | 27 in. | Top | 350 lbs | 75 GPM | 2" included |
| W3S310T2 | 30 in. | Top | 500 lbs | 98 GPM | 2" included |
| W3S310S | 30 in. | Side | 500 lbs | 98 GPM | Not included |
Flow rates per Hayward published specifications. The W3S310S ships without a valve. The W3S244T2 uses the same 24-inch tank with a 2-inch valve instead of 1.5-inch.
Maintaining the Hayward W3S244T ProSeries 24-Inch Sand Filter
Backwash when pressure rises 8 to 10 PSI above the clean baseline. Switch to Backwash until the sight glass clears, Rinse 15 to 30 seconds, then return to Filter. The 300 lb sand bed typically extends backwash intervals compared to smaller tanks at equivalent pool volumes. Replace sand every 3 to 5 years.
First Startup: Loading Sand
Fill the tank halfway with water before adding sand. Add 300 lbs of #20 silica sand gradually. Run a full Rinse cycle before switching to Filter to clear fine dust. Record the post-Rinse pressure as the clean baseline.
Winterizing the W3S244T
Backwash before shutdown. Drain the tank through the base drain and leave the plug out. Set the valve to Winter to drain the valve body. In hard-freeze climates, blow out the valve with compressed air before storage.
Hayward W3S244T ProSeries 24-Inch Sand Filter Frequently Asked Questions
What is the difference between the W3S244T and W3S244T2?
Identical tank, sand capacity, filtration area, and flow rate. The only difference is valve size: the W3S244T includes a 1.5" valve and the W3S244T2 includes a 2" valve. Choose the W3S244T2 if your plumbing is 2-inch throughout, your pump output consistently approaches the 62 GPM ceiling, or you want the reduced head loss that a larger valve provides at high flow rates.
Does the W3S244T include sand?
No. 300 lbs of #20 silica pool filter sand must be purchased separately. Fill the tank halfway with water before adding sand to protect the lateral assembly.
When should I step up to the W3S270T instead?
If your pump output at operating head consistently approaches or exceeds 62 GPM, stepping up to the W3S270T (75 GPM, 350 lbs, 3.70 sq ft) provides additional headroom and extends backwash intervals. Running any filter at the top of its flow ceiling continuously shortens the effective service life of the sand bed.
Can the valve be rotated after installation?
Yes. The flange clamp design allows the valve to rotate 360 degrees on the tank so the inlet and outlet ports can be oriented to match existing plumbing without cutting new pipe runs.