Generac T20-S
#2 in Up to 2 inFull review
A 2 in trash pump for muddy water with stones and sticks, with a long run time and a three-year warranty. For owners who deal with dirty flood water.
A.P. Electric $1,199$1,199
The Generac T20-S is the better gas water pump overall, rated 3.3 to 2.8. The Generac T20-S leads on solids and flow. The NorthStar 2 in Semi-Trash Pump wins on value. The NorthStar 2 in Semi-Trash Pump costs $632.01 less ($566.99 vs $1,199).
NorthStar 2 in Semi-Trash Pump
#13 in Up to 2 inFull review
A heavy-duty 2 in semi-trash pump from Northern Tool’s house brand, for gritty water on farms and job sites.
Amazon $566.99$566.99
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?
- Choose the Generac T20-S for solids (passes solids up to 1 in vs passes solids up to 0.6 in) and flow (185 gpm maximum vs 166.8 gpm maximum).
- Choose the NorthStar 2 in Semi-Trash Pump for value ($3.40 per gpm ($566.99, 166.8 gpm) vs $6.48 per gpm ($1,199, 185 gpm)).
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 | Generac T20-S | NorthStar 2 in Semi-Trash Pump |
|---|---|---|
| Overall rating | 3.3/5 | 2.8/5 |
| Value 30% | 36 $6.48 per gpm ($1,199, 185 gpm) | 64 $3.40 per gpm ($566.99, 166.8 gpm) |
| Flow 15% | 71 185 gpm maximum | 56 166.8 gpm maximum |
| Head 10% | 63 98 ft maximum head | 50 head not published (neutral score used) |
| Solids 15% | 60 passes solids up to 1 in | 30 passes solids up to 0.6 in |
| Warranty 30% | 50 3-year warranty for home use | 0 warranty not published, scored as none |
Specifications
| Generac T20-S | NorthStar 2 in Semi-Trash Pump | |
|---|---|---|
| Pumping | ||
| Type | Trash | Semi-trash |
| Ports | 2 in | 2 in |
| Maximum flow | 185 gpm | 166.8 gpm |
| Maximum head | 98 ft | - |
| Suction lift | 26 ft | 23 ft |
| Largest solids | 1 in | 0.6 in |
| Engine and build | ||
| Engine | Generac G-Force, 211 cc | - |
| Fuel tank | 3 gal | - |
| Runtime on a tank | 5 hr | - |
| Weight | 109.1 lb | - |
| Warranty | 3 years | - |