Superior Pump 93511 (Vertical Float)
#11 in Up to 1/2 HPFull review
For a budget sewage pump in a tight basin where a tethered float would not swing freely.
Amazon $251.03$251.03
The Superior Pump 93511 (Vertical Float) is the better sewage ejector pump overall, rated 2.7 to 2.6. The Superior Pump 93511 (Vertical Float) leads on value and lift. The Zoeller N264 Waste-Mate (Manual) wins on warranty. The Superior Pump 93511 (Vertical Float) costs $113.31 less ($251.03 vs $364.34).
Zoeller N264 Waste-Mate (Manual)
#12 in Up to 1/2 HPFull review
For replacing a Zoeller 264 in a system that already has its own float switch or control panel. Anyone without one should buy the automatic M264.
Amazon $364.34$364.34
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 Superior Pump 93511 (Vertical Float) for value ($4.18 per gpm ($251.03, 60 gpm at 10 ft) vs $6.07 per gpm ($364.34, 60 gpm at 10 ft)) and lift (25 gpm at 20 ft vs no flow at 20 ft).
- Choose the Zoeller N264 Waste-Mate (Manual) for warranty (3-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1/2 HP sewage ejector pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Superior Pump 93511 (Vertical Float) | Zoeller N264 Waste-Mate (Manual) |
|---|---|---|
| Overall rating | 2.7/5 | 2.6/5 |
| Value 30% | 41 $4.18 per gpm ($251.03, 60 gpm at 10 ft) | 11 $6.07 per gpm ($364.34, 60 gpm at 10 ft) |
| Flow 20% | 25 60 gpm at 10 ft | 25 60 gpm at 10 ft |
| Lift 15% | 42 25 gpm at 20 ft | 0 no flow at 20 ft |
| Build 10% | 100 cast iron motor housing and volute | 100 cast iron motor housing and volute |
| Warranty 25% | 0 1-year warranty | 50 3-year warranty |
Specifications
| Superior Pump 93511 (Vertical Float) | Zoeller N264 Waste-Mate (Manual) | |
|---|---|---|
| Pumping | ||
| Motor | 1/2 HP | 4/10 HP |
| Flow at 10 ft | 60 gpm | 60 gpm |
| Flow at 20 ft | 25 gpm | - |
| Shutoff head | 25 ft | 18 ft |
| Solids | 2 in | 2 in |
| Discharge | 2 in | 2 in |
| Switch | Vertical | Manual |
| Build | ||
| Cast iron | Yes | Yes |
| Voltage | 115 V | 115 V |
| Current | 7.6 A | 9.4 A |
| Cord | 10 ft | 15 ft |
| Weight | - | 34.5 lb |
| Warranty | 1 year | 3 years |