---
product_id: 418608433
title: "Liberty Pumps 257 1/3-Horse Power 1-1/2-Inch Discharge 250-Series Cast Iron Automatic Submersible Sump/Effluent Pump with VMF Switch"
brand: "liberty pumps"
price: "5249.97 DT"
currency: TND
in_stock: true
category: "Liberty Pumps"
url: https://www.desertcart.tn/products/418608433-liberty-pumps-257-1-3-horse-power-1-1-2
store_origin: TN
region: Tunisia
---

# 50 GPM max flow 21-ft max discharge head 1/2-inch solids handling Liberty Pumps 257 1/3-Horse Power 1-1/2-Inch Discharge 250-Series Cast Iron Automatic Submersible Sump/Effluent Pump with VMF Switch

**Brand:** liberty pumps
**Price:** 5249.97 DT
**Availability:** ✅ In Stock

## Summary

> 💧 Quiet power that keeps your basement dry and your peace of mind high.

## Quick Answers

- **What is this?** Liberty Pumps 257 1/3-Horse Power 1-1/2-Inch Discharge 250-Series Cast Iron Automatic Submersible Sump/Effluent Pump with VMF Switch by liberty pumps
- **How much does it cost?** 5249.97 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/418608433-liberty-pumps-257-1-3-horse-power-1-1-2)

## Best For

- liberty pumps enthusiasts

## Why This Product

- Trusted liberty pumps brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Peace of Mind Warranty:** Backed by a 3-year warranty and made in the USA, designed to protect your valuable basement investment.
- • **Durable Cast Iron Build:** Rugged one-piece cast iron housing ensures long-lasting reliability and quiet operation.
- • **Smart Magnetic Float Switch:** Maintenance-free VMF switch offers hassle-free setup and dependable automatic on/off cycling.
- • **Compact Fit for Tight Spaces:** Magnetic VMF switch enables operation in small 10-inch diameter pits—perfect for modern homes with limited space.
- • **Powerful & Efficient Pumping:** Delivers up to 50 gallons per minute with a 1/3 HP motor that cuts energy use by 40%.

## Overview

The Liberty Pumps 257 is a 1/3 HP automatic submersible sump pump featuring a cast iron housing, capable of pumping up to 50 gallons per minute with a maximum discharge head of 21 feet. It includes a magnetically operated vertical float (VMF) switch for reliable automatic operation in small 10-inch diameter pits. Designed for quiet, efficient performance with 1/2-inch solids handling, this pump reduces electrical consumption by up to 40% and comes with a 3-year warranty, making it a durable and energy-smart choice for basement flood protection.

## Description

Liberty Pumps 257 is a 1/3HP Automatic Submersible Sump Pump with with magnetically operated vertical float VMF switch and 10ft power cord. Turn-on level of the not adjustable switch is 7" and turn-off level is 3-1/2". This pump can operate in a smaller 10" diameter sump pit.The Liberty Pumps 257 has 1-1/2" NPT discharge, 1/2" solids-handling, 18' shut-off head, a unique one-piece cast iron housing and thermally protected permanently lubricated motor.For Sump and De-watering Applications only. This Vertical Magnetic Float (VMF) model is not recommended for effluent applications due to their short On/Off cycle. Wide angle float models (Liberty Pumps 251 and 253) are better suited for effluent applications and are easily adjustable for different On/Off levels.For added protection, consider the addition of a back-up pump such as Liberty's SJ10 SumpJet, as well as an alarm such as Liberty's ALM-2 in applications where loss of pump function could result in property damage. If an alarm is used, it must be connected to a separate electrical circuit.CAUTION Do not let the pump run dry.

## Features

- Pumps up to 50 GPM
- Maximum discharge head of 21-Foot
- 1/2-Inch solids handling
- Efficient motor design reduces electrical usage by up to 40-percent
- Includes a magnetically operated VMF switch for smaller pits down to a 10-Inch diameter and a 3 year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001PTT5JM |
| Brand Name | Liberty Pumps |
| Colour | Gray |
| Customer Reviews | 4.6 4.6 out of 5 stars (663) |
| Flow Rate | 50 Gallons Per Minute |
| Global Trade Identification Number | 00671812002577 |
| Horsepower | 0.33 |
| Included Components | pump |
| Item Dimensions L x W x H | 24.4L x 24.4W x 26.7H Centimeters |
| Item Type Name | pump |
| Item Weight | 6.9 kg |
| Manufacturer | Liberty Pumps |
| Manufacturer Part Number | 257 |
| Manufacturer Warranty Description | Liberty Pumps, Inc. warrants that pumps and other products of its manufacture are free from all factory defects in material and workmanship for a period of 2 years from the date of purchase. |
| Material Type | Cast Iron |
| Maximum Lifting Height | 21 Feet |
| Model Number | 257 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Corded Electric |
| Product Style | Submersible |
| Specific Uses For Product | Basement flooding, Crawlspace water removal, Rainy conditions |
| UPC | 671812002577 |
| Unit Count | 1.0 Count |
| Voltage | 115 Volts |

## Product Details

- **Brand:** Liberty Pumps
- **Colour:** Gray
- **Item Weight:** 6.9 kg
- **Material:** Cast Iron
- **Maximum Flow Rate:** 50 Gallons Per Minute
- **Maximum Lifting Height:** 21 Feet
- **Power Source:** Corded Electric
- **Product Dimensions:** 24.4L x 24.4W x 26.7H Centimeters
- **Style:** Submersible
- **Voltage:** 115 Volts

## Images

![Liberty Pumps 257 1/3-Horse Power 1-1/2-Inch Discharge 250-Series Cast Iron Automatic Submersible Sump/Effluent Pump with VMF Switch - Image 1](https://m.media-amazon.com/images/I/61mNZjhjsHL.jpg)
![Liberty Pumps 257 1/3-Horse Power 1-1/2-Inch Discharge 250-Series Cast Iron Automatic Submersible Sump/Effluent Pump with VMF Switch - Image 2](https://m.media-amazon.com/images/I/41HVkh9gtdL.jpg)

## Questions & Answers

**Q: Do i need to use a threaded pipe on the discharge hole or any 1 1/2 pvc pipe (sched 40) will work?**
A: Yes1) You will need a  threaded pvc adapter.  The threaded end fit the pump and glue 1 1/2" pvc pipe into the other end 2) Drill a small hole as per instructions on the vertical rise so the pump doesn't airlock3) I would also install a one way valve (check valve) on the vertical rise about $10 or so at Menards..........they are rubber and connected with hose clamps.Should work finethank youBill Sparks

**Q: I'm replacing it and it says to drill a 1/8 inch hole on the extraction pipe but my existing one does not have one, do I still need one?**
A: The pump itself has airlock protection built in, but nonetheless the instruction manual does still recommend a 1/8" hole be drilled (not far from the pump discharge) to prevent airlock, IF a check valve is being used (most modern sump pump installations do utilize check valves to prevent back-flow). For my particular installation, I do use a check valve so I drilled the 1/8" hole about 1" above the pump discharge on the PVC pipe. Haven't had any issues.

**Q: Whatst the difference between this pump and 257-2?  https://www.amazon.com/gp/product/b0057gu6tm?pf_rd_p=c2945051-950f-485c-b4df-15aac5223b10&pf_rd_r=**
A: Cord length. The standard cord is 10 feet long. The pumps with -2 have a 25' long cord. -3 pumps have a 35' cord. -5 pumps have a 50' cord.

**Q: I'm having switch issues with my "Z" 53 1/3HP pump so I talked to a Liberty rep today about sizing and he calculated everything and said that I am right at the middle of a 1/3HP (257) and a 1/2HP (287). He went on to say that both will have a tendency to "short cycle" in my situation (not a ton of water other than "100…**
A: No way to answer without knowing how many feet of head you have.  If "a long way" means 15-20' then go for the 1/2 hp.  Up to 10' a 1/3 hp is plenty.  

If it short cycles it will wear out sooner and leave you unprotected from a flood, so bigger is not always better.

## Frequently Bought Together

- Liberty Pumps 257 pump, gray, 1-1/2"
- Zoeller 30-0181 PVC Plastic Check Valve, 1-1/2 Inch
- Sump Pump Platform

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/418608433-liberty-pumps-257-1-3-horse-power-1-1-2](https://www.desertcart.tn/products/418608433-liberty-pumps-257-1-3-horse-power-1-1-2)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-14*