Liberty Pumps LE51M-2 (Manual)
#2 in Up to 1/2 HPFull review
For a basin run from an alarm panel or duplex controller that needs the LE50 pump without a built in float.
Amazon $438.90$438.90
The Liberty Pumps LE51M-2 (Manual) is the better sewage ejector pump overall, rated 4.0 to 3.1. The Liberty Pumps LE51M-2 (Manual) leads on value and warranty. The Zoeller M292 High Head Waste-Mate wins on lift. The Liberty Pumps LE51M-2 (Manual) costs $743.16 less ($438.90 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.
Zoeller M292 High Head Waste-Mate
#9 in Up to 1/2 HPFull review
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 $1,182.06$1,182.06
Which should you buy?
- Choose the Liberty Pumps LE51M-2 (Manual) for value ($3.72 per gpm ($438.90, 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 LE51M-2 (Manual) | Zoeller M292 High Head Waste-Mate |
|---|---|---|
| Overall rating | 4.0/5 | 3.1/5 |
| Value 30% | 50 $3.72 per gpm ($438.90, 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 LE51M-2 (Manual) | 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 | Manual | Tethered |
| Build | ||
| Cast iron | Yes | Yes |
| Voltage | 115 V | 115 V |
| Current | 12 A | 15 A |
| Cord | 25 ft | 20 ft |
| Weight | 43 lb | - |
| Warranty | 3 years | 1 year |