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) and the Liberty Pumps LE51A are evenly matched, rated 4.0 and 4.0. The Liberty Pumps LE51M-2 (Manual) costs $4.09 less ($438.90 vs $442.99).
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.
Liberty Pumps LE51A
#3 in Up to 1/2 HPFull review
For a basement bathroom or laundry with a lift of 15 to 20 ft that a 4/10 HP pump would struggle with.
Amazon $442.99$442.99
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) | Liberty Pumps LE51A |
|---|---|---|
| Overall rating | 4.0/5 | 4.0/5 |
| Value 30% | 50 $3.72 per gpm ($438.90, 118 gpm at 10 ft) | 50 $3.75 per gpm ($442.99, 118 gpm at 10 ft) |
| Flow 20% | 98 118 gpm at 10 ft | 98 118 gpm at 10 ft |
| Lift 15% | 90 54 gpm at 20 ft | 90 54 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 | 50 3-year warranty |
Specifications
| Liberty Pumps LE51M-2 (Manual) | Liberty Pumps LE51A | |
|---|---|---|
| Pumping | ||
| Motor | 1/2 HP | 1/2 HP |
| Flow at 10 ft | 118 gpm | 118 gpm |
| Flow at 20 ft | 54 gpm | 54 gpm |
| Shutoff head | 24 ft | 24 ft |
| Solids | 2 in | 2 in |
| Discharge | 2 in | 2 in |
| Switch | Manual | Piggyback |
| Build | ||
| Cast iron | Yes | Yes |
| Voltage | 115 V | 115 V |
| Current | 12 A | 12 A |
| Cord | 25 ft | 10 ft |
| Weight | 43 lb | 43 lb |
| Warranty | 3 years | 3 years |