---
product_id: 219252562
title: "MPS4060 Water Well Pressure Control & Air-Pump Pressure Switch, 40-60 PSI Pressure Setting, NEMA 1, Adjustable Differential,1/4\" Female NPT"
brand: "merrill"
price: "$47.03"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/219252562-mps4060-water-well-pressure-control-and-air-pump-pressure-switch
store_origin: US
region: United States of America
---

# Supports up to 2HP at 115VAC power 1/4" Female NPT connector for easy installation 40-60 PSI adjustable pressure range MPS4060 Water Well Pressure Control & Air-Pump Pressure Switch, 40-60 PSI Pressure Setting, NEMA 1, Adjustable Differential,1/4" Female NPT

**Brand:** merrill
**Price:** $47.03
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your water flowing flawlessly—pressure control that means business!

## Quick Answers

- **What is this?** MPS4060 Water Well Pressure Control & Air-Pump Pressure Switch, 40-60 PSI Pressure Setting, NEMA 1, Adjustable Differential,1/4" Female NPT by merrill
- **How much does it cost?** $47.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/219252562-mps4060-water-well-pressure-control-and-air-pump-pressure-switch)

## Best For

- merrill enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** 1/4" Female NPT connector and screw terminals simplify setup, saving you time and hassle.
- • **Robust Power Handling:** Rated for 2HP at 115VAC, designed to handle demanding water well pump applications effortlessly.
- • **Durable Silver Contacts:** Large, corrosion-resistant silver contacts ensure longer service life and reliable operation.
- • **Universal Compatibility:** Works seamlessly with jets, submersible, and reciprocating pumps—your all-in-one replacement solution.
- • **Precision Pressure Control:** Maintain optimal water pressure with a 40-60 PSI adjustable range for consistent performance.

## Overview

The Merrill MPS4060 is a high-performance water well pressure control switch designed for electrically driven pumps. Featuring an adjustable 40-60 PSI pressure range, durable silver contacts, and compatibility with various pump types, it ensures reliable, long-lasting operation. With easy installation via a 1/4" Female NPT connector and support for up to 2HP at 115VAC, this OEM replacement part is engineered for professional-grade water system management.

## Description

Merrill MPS4060 Water Well Pressure Control & Air-Pump Pressure Switch, 40-60 PSI Pressure Setting, NEMA 1, Adjustable Differential,1/4" Female NPT

## Features

- Standard water well pump replacement switch designed for use of electrically driven water well pumps of all types (Jets, Submersible, Reciprocating etc)
- Cut-In Pressure 40 PSI - Cut-Off Pressure 60 PSI - Adjustable
- Large silver contacts for longer service life
- Horsepower Rating (1-Phase) 2HP-115VAC
- 1/4" Female NPT - Individaully Boxed - OEM Replacement Part

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | automatic |
| Operating Voltage | 115 Volts (AC) |
| Contact Type | Normally Open |
| Connector Type | 1/4" Female Npt |
| Brand | Merrill |
| Terminal | Screw |
| Circuit Type | 1-way |
| Contact Material | Brass |
| Control Method | Touch |
| Color | Silver |
| Unit Count | 1.0 Count |
| Manufacturer | Merrill Manufacturing Company |
| UPC | 642367450175 |
| Part Number | MPS4060-A |
| Item Weight | 14.4 ounces |
| Package Dimensions | 4.17 x 4.09 x 2.99 inches |
| Item model number | MPS4060-A |
| Style | Submersible |
| Power Source | Ac Power |
| Voltage | 115 Volts (AC) |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Operation Mode:** automatic
- **Operating Voltage:** 115 Volts (AC)
- **Contact Type:** Normally Open
- **Connector Type:** 1/4" Female Npt
- **Brand:** Merrill
- **Terminal:** Screw
- **Circuit Type:** 1-way
- **Contact Material:** Brass
- **Control Method:** Touch
- **Color:** Silver

## Images

![MPS4060 Water Well Pressure Control & Air-Pump Pressure Switch, 40-60 PSI Pressure Setting, NEMA 1, Adjustable Differential,1/4" Female NPT - Image 1](https://m.media-amazon.com/images/I/61CyP9kdbuL.jpg)

## Questions & Answers

**Q: Will this work with DC power?**
A: Yes it does work with DC and the rating is noted on the label inside the switch cover.

**Q: Is this what we would use to "replace the check valve"? Our water is getting sucked back into well & electricity bill is outrageous.**
A: No. This is. The device that cuts the pump off and on. The check valve looks like a piece of pipe and is installed close to the pump.

**Q: Will this switch work off 12 volts DC? 
If so, what is the amp rating and wiring scheme?**
A: the pressure switch will work with 12 to 32 volt DC current up to a 1/4 HP motor.   the wiring is the same 
for this type of installation too.  We can not provide more electrical details due to liability.

**Q: Is this a direct replacement for a type: sk2 sta-rite switch?**
A: Sorry, I am not totally familiar with sk2 sta-rite type switch. This a standard 40-60 press switch.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-05*