A budget 2 in semi-trash pump for occasional pool draining and yard flooding. It suits owners who want a known brand at a no-name price.
Amazon $269The Westinghouse WP160 is the better gas water pump overall, rated 3.6 to 3.1. The Westinghouse WP160 leads on value and solids. The Generac PRO ST20-S wins on head. The Westinghouse WP160 costs $430 less ($269 vs $699).
A well-made 2 in semi-trash pump with a long run time and a three-year warranty, for homeowners who drain pools and yards every year.
A.P. Electric $699Prices 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?
- Choose the Westinghouse WP160 for value ($1.70 per gpm ($269, 158 gpm) vs $4.42 per gpm ($699, 158 gpm)) and solids (passes solids up to 0.6 in vs passes solids up to 0.3 in).
- Choose the Generac PRO ST20-S for head (108 ft maximum head vs 91 ft maximum head).
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 weight | Westinghouse WP160 | Generac PRO ST20-S |
|---|---|---|
| Overall rating | 3.6/5 | 3.1/5 |
| Value 30% | 94 $1.70 per gpm ($269, 158 gpm) | 53 $4.42 per gpm ($699, 158 gpm) |
| Flow 15% | 48 158 gpm maximum | 48 158 gpm maximum |
| Head 10% | 52 91 ft maximum head | 80 108 ft maximum head |
| Solids 15% | 30 passes solids up to 0.6 in | 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
| Westinghouse WP160 | Generac PRO ST20-S | |
|---|---|---|
| Pumping | ||
| Type | Semi-trash | Semi-trash |
| Ports | 2 in | 2 in |
| Maximum flow | 158 gpm | 158 gpm |
| Maximum head | 91 ft | 108 ft |
| Suction lift | 25 ft | 26 ft |
| Largest solids | 0.6 in | 0.3 in |
| Engine and build | ||
| Engine | 212 cc | Generac G-Force OHC, 169 cc |
| Fuel tank | - | 3 gal |
| Runtime on a tank | - | 5 hr |
| Weight | 53 lb | 65.3 lb |
| Warranty | - | 3 years |
