Koshin STH-80X
#9 in 3 in and upFull review
A Japanese-built 3 in semi-trash pump with a Honda engine, for dewatering and irrigation.
Amazon $725.54$725.54
3.2/5
A low-cost 3 in pump kit on wheels for draining ponds and pools. The 90-day warranty suits occasional use only.
- 290 gpmFlow
- 85 ftHead
- Semi-trashType
- 3 inPorts
Check price at Amazon$429.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 290 gpm for about $430
- Wheels, handle and hoses included
Cons
- Only a 90-day warranty
- Solids size not published, and the listing calls it both trash and semi-trash
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | TWA-0210 |
|---|---|
| Pumping | |
| Type | Semi-trash |
| Ports | 3 in |
| Maximum flow | 290 gpm |
| Maximum head | 85 ft |
| Suction lift | 26 ft |
| Engine and build | |
| Engine | BILT HARD OHV, 212 cc |
| Warranty | 0.2 years |
Alternatives in this size
NorthStar Extended Run 3 in Semi-Trash Pump
#10 in 3 in and upFull review
A 3 in semi-trash pump with an oversized tank for all-day dewatering. It is for sites that need a pump running unattended through a shift.
Amazon $979.99$979.99
BE TP-3065HR 3 in Semi-Trash Pump
#12 in 3 in and upFull review
A Honda-powered 3 in semi-trash pump with a roll cage, for dewatering and irrigation with gritty water.
Amazon $934.99$934.99
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