Hayward ProSeries S166T vs Hayward ProSeries S180T

Last updated: November 2, 2026

The Hayward ProSeries S180T is the better pool filter overall, rated 2.8 to 2.7. The Hayward ProSeries S166T costs $70 less ($429 vs $499).

Hayward ProSeries S166T vs Hayward ProSeries S180T

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.

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 weightHayward ProSeries S180THayward ProSeries S166T
Overall rating2.8/52.7/5
Value 35%28 $14.26 per gpm ($499, 35 gpm)28 $14.30 per gpm ($429, 30 gpm)
Filter area 30%7 1.8 sq ft of filter area0 1.4 sq ft of filter area
Valve 10%100 multiport valve100 multiport valve
Pressure rating 10%100 50 psi maximum working pressure100 50 psi maximum working pressure
Warranty 15%33 1-year warranty33 1-year warranty

Specifications

Hayward ProSeries S180THayward ProSeries S166T
Filtering
Filter typeSandSand
Filter area1.8 sq ft1.4 sq ft
Maximum flow35 gpm30 gpm
Largest pool16,800 gal14,400 gal
Pool typeAbove-groundAbove-ground
Sand150 lb100 lb
Build
ValveMultiportMultiport
Maximum pressure50 psi50 psi
Ports1.5 in1.5 in
Warranty1 year1 year

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