Zoeller M95 Premium
#5 in 1/2 HP and upFull review
For a basement that floods hard and often, where an owner wants maximum flow with a 5 year warranty and an all cast iron build.
Amazon $432.16$432.16
The Zoeller M95 Premium is the better sump pump overall, rated 3.5 to 3.1. The Zoeller M95 Premium leads on warranty and flow. The Zoeller M98 Flow-Mate wins on value. The Zoeller M98 Flow-Mate costs $103.36 less ($328.80 vs $432.16).
Zoeller M98 Flow-Mate
#7 in 1/2 HP and upFull review
For basements with a high water table or a deep pit where a 1/3 HP pump runs constantly. The cast iron build suits long, heavy duty cycles.
Amazon $328.80$328.80
Prices were last checked October 31, 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 Zoeller M95 Premium for warranty (5-year warranty vs 3-year warranty) and flow (4,000 GPH at 10 ft vs 3,660 GPH at 10 ft).
- Choose the Zoeller M98 Flow-Mate for value ($89.84 per 1,000 GPH at 10 ft ($328.80, 3,660 GPH) vs $108.04 per 1,000 GPH at 10 ft ($432.16, 4,000 GPH)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 1/2 HP and up sump pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Zoeller M95 Premium | Zoeller M98 Flow-Mate |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Value 30% | 16 $108.04 per 1,000 GPH at 10 ft ($432.16, 4,000 GPH) | 31 $89.84 per 1,000 GPH at 10 ft ($328.80, 3,660 GPH) |
| Flow 30% | 60 4,000 GPH at 10 ft | 46 3,660 GPH at 10 ft |
| Build 20% | 67 cast iron motor housing, switch fits a narrow pit | 67 cast iron motor housing, switch fits a narrow pit |
| Warranty 20% | 100 5-year warranty | 50 3-year warranty |
Specifications
| Zoeller M95 Premium | Zoeller M98 Flow-Mate | |
|---|---|---|
| Pumping | ||
| Motor | 1/2 HP | 1/2 HP |
| Type | Submersible | Submersible |
| Flow at 10 ft | 4,000 GPH | 3,660 GPH |
| Max lift | 26 ft | 23 ft |
| Discharge | 1.5 in | 1.5 in |
| Running current | 10.5 A | 9.4 A |
| Switch and build | ||
| Switch | Vertical float | Vertical float |
| Cast iron housing | Yes | Yes |
| Alarm or monitoring | No | No |
| Wi-Fi | No | No |
| Cord length | 15 ft | 9 ft |
| Weight | 38 lb | 36 lb |
| Warranty | 5 years | 3 years |