For a basement bathroom or laundry with a lift of 15 to 20 ft that a 4/10 HP pump would struggle with.
Amazon $442.99The Liberty Pumps LE51A is the better sewage ejector pump overall, rated 4.0 to 3.1. The Liberty Pumps LE51A leads on value and warranty. The Zoeller M292 High Head Waste-Mate wins on lift. The Liberty Pumps LE51A costs $739.07 less ($442.99 vs $1,182.06).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
For a basement bathroom far below the sewer line, where a lift of 20 to 35 ft rules out ordinary 1/2 HP pumps.
Amazon $1,182.06Which should you buy?
- Choose the Liberty Pumps LE51A for value ($3.75 per gpm ($442.99, 118 gpm at 10 ft) vs $9.85 per gpm ($1,182.06, 120 gpm at 10 ft)) and warranty (3-year warranty vs 1-year warranty).
- Choose the Zoeller M292 High Head Waste-Mate for lift (87 gpm at 20 ft vs 54 gpm at 20 ft).
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 | Liberty Pumps LE51A | Zoeller M292 High Head Waste-Mate |
|---|---|---|
| Overall rating | 4.0/5 | 3.1/5 |
| Value 30% | 50 $3.75 per gpm ($442.99, 118 gpm at 10 ft) | 0 $9.85 per gpm ($1,182.06, 120 gpm at 10 ft) |
| Flow 20% | 98 118 gpm at 10 ft | 100 120 gpm at 10 ft |
| Lift 15% | 90 54 gpm at 20 ft | 100 87 gpm at 20 ft |
| Build 10% | 100 cast iron motor housing and volute | 100 cast iron motor housing and volute |
| Warranty 25% | 50 3-year warranty | 0 1-year warranty |
Specifications
| Liberty Pumps LE51A | Zoeller M292 High Head Waste-Mate | |
|---|---|---|
| Pumping | ||
| Motor | 1/2 HP | 1/2 HP |
| Flow at 10 ft | 118 gpm | 120 gpm |
| Flow at 20 ft | 54 gpm | 87 gpm |
| Shutoff head | 24 ft | 40 ft |
| Solids | 2 in | 2 in |
| Discharge | 2 in | 2 in |
| Switch | Piggyback | Tethered |
| Build | ||
| Cast iron | Yes | Yes |
| Voltage | 115 V | 115 V |
| Current | 12 A | 15 A |
| Cord | 10 ft | 20 ft |
| Weight | 43 lb | - |
| Warranty | 3 years | 1 year |
