Hayward ProSeries S166T

Last updated: November 2, 2026

Hayward ProSeries S166T
2.7/5#13 of 13 in sand pool filters
2.7

A simple multiport sand filter for an above-ground pool of up to about 14,400 gallons. Buy it for cheap media and one-lever backwashing, not for the clearest water.

  • 30 gpmFlow
  • 1.4 sq ftFilter area
  • 14,400 galPool size
  • Above-groundPool type
Check price at Amazon$429

Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Seven-position valve handles filter, backwash, rinse, waste and recirculate from one lever
  • Corrosion-proof molded tank stands up to years outdoors
  • Cheapest way into a Hayward multiport sand filter
Cons
  • One-year parts-only warranty on the online (W3) version; dealer-sold versions get longer cover
  • Only 30 gpm, so it suits small above-ground pools
  • Backwashing dumps pool water to waste each time

The Hayward ProSeries top-mount sand family

Every Hayward ProSeries top-mount sand model we rank, smallest first. Ratings compare each against its own type.

ModelFlowRatingPrice
Hayward ProSeries S166T (this one)30 gpm2.7/5$429
Hayward ProSeries S180T35 gpm2.8/5$499
Hayward ProSeries S210T44 gpm3.0/5$569
Hayward ProSeries S244T62 gpm3.5/5$689
Hayward ProSeries S270T274 gpm3.6/5$819
Hayward ProSeries S310T298 gpm3.9/5$1,219

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Specifications

Model numberW3S166T
Filtering
Filter typeSand
Filter area1.4 sq ft
Maximum flow30 gpm
Largest pool14,400 gal
Pool typeAbove-ground
Sand100 lb
Build
ValveMultiport
Maximum pressure50 psi
Ports1.5 in
Warranty1 year

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