Hayward ProSeries S180T Sand Filter — compact, reliable solution for above-ground pools
The Hayward ProSeries S180T sand filter with an 18-inch diameter delivers powerful, economical filtration for standard above-ground pools and small inground pools. Featuring a 1½-in. VariFlo® valve, a corrosion-resistant thermoplastic tank, and umbrella-style folding laterals, it keeps water clear all season with minimal maintenance — a go-to choice for family pools in Quebec.
Why choose the Hayward ProSeries S180T?
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One-piece corrosion-resistant thermoplastic tank — withstands salt, chlorine, and UV rays for years of worry-free use.
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360° rotating clamp — position the valve in any direction to simplify plumbing.
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1½-in. VariFlo® valve included (6 or 7 positions) — filter, backwash, rinse, recirculate, drain, and closed.
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Integrated top diffuser — distributes water evenly over the sand bed for optimal filtration.
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Self-cleaning umbrella-style folding laterals — easy to disassemble, effective backwashing, quick maintenance.
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Integrated sand/water pressure drain — quick winterization.
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Pressure gauge and sight glass — easy filtration monitoring.
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Compact 18-in. size — ideal for small equipment areas and above-ground pools.
Official Hayward technical specifications
| Brand / Series |
Hayward — ProSeries™ |
| Model (Hayward SKU) |
S180T (Canadian box: S180TC) |
| Type |
Top-mount sand filter |
| Tank diameter |
18 in. (46 cm) |
| Effective filtration area |
1.77 sq. ft. (0.16 m²) |
| Sand capacity |
150 lb (68 kg) — No. 20 silica filter sand (not included) |
| Operating flow rate (Design Flow) |
35 GPM (132 L/min) |
| Backwash flow rate |
35 GPM |
| 8-hour turnover |
16,800 gallons |
| 10-hour turnover |
21,000 gallons |
| Maximum working pressure |
50 PSI |
| Valve / drain connection |
1½ in. (38 mm) |
| Valve included |
1½-in. VariFlo® — 6 or 7 positions |
| Pressure gauge / sight glass |
Included |
| Footprint |
~18 × 18 in. |
| Tank material |
Molded resin polymer — one-piece |
| Pool type |
Above-ground — small inground pools |
| Warranty |
2 years on parts |
| Hayward line |
Expert Line |
ProSeries comparison — choose the right size
| Model |
Diameter |
Area |
Sand |
Flow rate |
Typical application |
|
S180T (this model) |
18 in. |
1.77 sq. ft. |
150 lb |
35 GPM |
Above-ground: 15–18 ft. round / 12×24 oval |
| S210T |
21 in. |
2.2 sq. ft. |
200 lb |
44 GPM |
Above-ground: 18–24 ft. round / small inground pools |
| S244T |
24 in. |
3.14 sq. ft. |
300 lb |
62 GPM |
Standard inground pool |
Recommended pump compatibility
The S180T pairs perfectly with 0.75 HP to 1 HP Hayward pumps: Power-Flo Matrix, Power-Flo LX, or MaxFlo. Compatible with variable-speed pumps up to 1 HP. Ideal for standard family-sized above-ground pools.
Installation and maintenance
- 1½-in. FIP plumbing connection.
- Backwash when the pressure rises 8 to 10 PSI above the starting pressure.
- Easy winterization using the bottom drain — quickly empties the tank.
- Filter sand generally needs replacing every 5 to 7 years.
- Alternative: ZeoSand or AFM glass media for finer filtration (down to 5 microns) using 30% less media.
FAQ — Hayward ProSeries S180T
Is the S180T suitable for my above-ground pool?
Yes — it’s ideal for 15- to 18-foot round pools or 12×24 oval pools, with a 0.75 to 1 HP pump.
How much sand does the S180T need?
150 lb of No. 20 silica filter sand (three 50-lb bags).
What is the difference between the S180T and S180TC?
There is no technical difference. The “C” suffix indicates Canadian packaging.
Which pump should I choose for the S180T?
Hayward Power-Flo Matrix 1 HP or Power-Flo LX 0.75–1 HP. It’s the classic combination for a standard above-ground pool.
Is it compatible with a salt chlorinator?
Yes — the polymer tank is fully resistant to salt. Ideal with an AquaRite® S3.
How long does a Hayward ProSeries filter last?
15 to 20 years under normal operating conditions with regular maintenance.
Why buy from Piscines Geyser?
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Hayward Rewards® dealer — your warranty is fully honored.
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22 years of pool expertise in Quebec — advice on pumps and filter sand.
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Replacement parts in stock — SX180DA laterals, seals, pressure gauges, VariFlo valves.
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Local service — installation, startup, and winterization available.
