Generac PRO ST20-S vs Pacer SE2UL E5HCP

Last updated: November 2, 2026

The Pacer SE2UL E5HCP is the better gas water pump overall, rated 3.7 to 3.1. The Pacer SE2UL E5HCP leads on flow, value and head. The Generac PRO ST20-S costs $6 less ($699 vs $705).

Generac PRO ST20-S vs Pacer SE2UL E5HCP

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?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every up to 2 in gas water pump; a clear win is highlighted. How we rank explains each one.

Factor weightPacer SE2UL E5HCPGenerac PRO ST20-S
Overall rating3.7/53.1/5
Value 30%63 $3.52 per gpm ($705, 200 gpm)53 $4.42 per gpm ($699, 158 gpm)
Flow 15%83 200 gpm maximum48 158 gpm maximum
Head 10%100 130 ft maximum head80 108 ft maximum head
Solids 15%50 solids size not published (neutral score used)6 passes solids up to 0.3 in
Warranty 30%50 warranty not published (neutral score used)50 3-year warranty for home use

Specifications

Pacer SE2UL E5HCPGenerac PRO ST20-S
Pumping
TypeClear waterSemi-trash
Ports2 in2 in
Maximum flow200 gpm158 gpm
Maximum head130 ft108 ft
Suction lift25 ft26 ft
Largest solids-0.3 in
Engine and build
EngineHonda GX160, 163 ccGenerac G-Force OHC, 169 cc
Fuel tank-3 gal
Runtime on a tank-5 hr
Weight-65.3 lb
Warranty-3 years

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