---
product_id: 34198276
title: "Manufacturing Company 24140 1.5\" Auto-Drain"
brand: "barker"
price: "$353.71"
currency: USD
in_stock: true
reviews_count: 11
category: "Barker"
url: https://www.desertcart.us/products/34198276-manufacturing-company-24140-1-5-auto-drain
store_origin: US
region: United States of America
---

# 12V push-button operation No plumbing modifications needed Quick install under 10 minutes Manufacturing Company 24140 1.5" Auto-Drain

**Brand:** barker
**Price:** $353.71
**Availability:** ✅ In Stock

## Summary

> ⚡ Automate your RV dump valves—comfort and convenience at your fingertips!

## Quick Answers

- **What is this?** Manufacturing Company 24140 1.5" Auto-Drain by barker
- **How much does it cost?** $353.71 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/34198276-manufacturing-company-24140-1-5-auto-drain)

## Best For

- barker enthusiasts

## Why This Product

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

## Key Features

- • **Durable Metal Build:** Crafted from polished metal for long-lasting, rugged performance on the road.
- • **Compact & Lightweight:** At just 2 lbs and 10.27" x 5.73", it’s designed for easy integration without bulk.
- • **Backed by Trusted Brand:** Barker Manufacturing’s proven quality ensures reliability for your RV adventures.
- • **Effortless Tank Dumping:** Say goodbye to bending and crawling with fully automatic push-button control.
- • **Plug & Play Installation:** Fits existing slide valves—no plumbing overhaul required, saving you time and hassle.

## Overview

The Barker Manufacturing 24140 1.5" Auto-Drain is a 12-volt automatic actuator that enables push-button operation of your RV’s grey and black water tank valves. Designed for easy installation on existing slide valves without plumbing changes, it offers a durable metal construction and a compact form factor. Ideal for RV owners seeking a cleaner, faster, and more ergonomic way to manage waste tanks.

## Description

Barker Manufacturing Company Auto-Drain provides completely automatic 12-volt push button operation of the valves that dump your RV's grey and black water holding tanks. Installs on your current slide valves, and no plumbing modifications are required.

Review: Works great - This purchase was the second auto valve I have purchased. The first one was damaged in a tire blowout. I was happily able to use the same connector as the previous install. These thing are great. I Installed them because I have an injured back and bad knees. This was a very difficult chore as the location of the drain valves required me to bend and lean forward under the Travel Trailer to release them. No longer have to do this. This chore is now quick, easy and clean. However my one complaint, not product related, is the advertisement of the product. The ad and indeed the box it comes in is deceptive. It shows the product with a drain valve attached as if it comes as a complete unit. THIS IS NOT THE CASE. YOU STILL, NEED TO HAVE THE ORIGINAL VALVE OR A REPLACEMENT INSTALLED IN ORDER TO USE THESE ACTUATOR AS INTENDED. So just be aware of this requirement and ignore the pictures.
Review: No more need to get on your knees - It seems to be sturdy enough and opens and closes smoothly. Installing the valve takes less than ten minutes. The hard part is routing the wires, that took me days to complete. My water control panel is about 12' from the dump valves but finding a way to get the wires to the valves on my Motorhome was a huge challenge. I recommend installing new valves. My old valves were sticky and the light would not turn off when I closed the valve. I installed a new valve and it works perfectly now. I'm looking forward to not having to crawl on my knees to dump the tanks.

## Features

- Product Type :Auto Accessory
- Package Dimensions :10.27" L X5.73" W X2.88" H
- Country Of Origin :United States
- Package Weight :4.0Lbs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002OW2MIK |
| Best Sellers Rank | #438,272 in Automotive ( See Top 100 in Automotive ) #902 in Automotive Replacement Engine Oil Drain Plugs |
| Brand | BARKER |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (56) |
| Date First Available | August 31, 2009 |
| Finish Type | Polished |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2 pounds |
| Item model number | 24140 |
| Manufacturer | Barker Manufacturing Company |
| Manufacturer Part Number | 24140 |
| Material | Metal |
| Model | Valterra-Bristol Model |
| Number of Items | 1 |
| Product Dimensions | 10.27"W x 5.73"H |
| Special Feature | Removable |
| Special Features | Removable |
| Style | Modern |
| UPC | 755220241404 |

## Product Details

- **Brand:** BARKER
- **Color:** Black
- **Finish Type:** Polished
- **Material:** Metal
- **Product Dimensions:** 10.27"W x 5.73"H

## Images

![Manufacturing Company 24140 1.5" Auto-Drain - Image 1](https://m.media-amazon.com/images/I/61-cil3FgEL.jpg)

## Questions & Answers

**Q: Is the separate 12v Switch included?**
A: Yes, at least it was with mine.

**Q: Barkar manufacturing company 24140 1.5" auto-drain (i need full information about this part and what is this part job )**
A: It is a 12v electronic waste valve for use on RV black and gray waste tank

**Q: Does this valve have a prvovision to operate manually like the Valterra EZ?  Valterra don't make  a    11/2 inch and  don't have room for bushings.**
A: Once installed, there's no option to operate manually without disconnecting the connection between the original handle and the Barker shaft

**Q: Does this install require any extra parts not shown?**
A: yes my 1.5" needed 2 longer screws to attach the mounting plate size 10 -32 1.5" the 3' did not need any extras

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by R***. on February 12, 2025*

This purchase was the second auto valve I have purchased. The first one was damaged in a tire blowout. I was happily able to use the same connector as the previous install. These thing are great. I Installed them because I have an injured back and bad knees. This was a very difficult chore as the location of the drain valves required me to bend and lean forward under the Travel Trailer to release them. No longer have to do this. This chore is now quick, easy and clean. However my one complaint, not product related, is the advertisement of the product. The ad and indeed the box it comes in is deceptive. It shows the product with a drain valve attached as if it comes as a complete unit. THIS IS NOT THE CASE. YOU STILL, NEED TO HAVE THE ORIGINAL VALVE OR A REPLACEMENT INSTALLED IN ORDER TO USE THESE ACTUATOR AS INTENDED. So just be aware of this requirement and ignore the pictures.

### ⭐⭐⭐⭐⭐ No more need to get on your knees
*by D***9 on January 10, 2026*

It seems to be sturdy enough and opens and closes smoothly. Installing the valve takes less than ten minutes. The hard part is routing the wires, that took me days to complete. My water control panel is about 12' from the dump valves but finding a way to get the wires to the valves on my Motorhome was a huge challenge. I recommend installing new valves. My old valves were sticky and the light would not turn off when I closed the valve. I installed a new valve and it works perfectly now. I'm looking forward to not having to crawl on my knees to dump the tanks.

### ⭐⭐⭐⭐ Works well, a few mistakes installing it but great overall
*by S***M on October 28, 2025*

It works so far. It wasn't to hard to install. The only thing I will say to watch out for is the inner seals. they aren't attached and easily fall out while installing. so You have to make sure to pay close attention to make sure the seals stay in place when installing. one seal slid off to the side because it was a tight space on the grey line, not much room and it fell out of place. when we tested it it leaked really bad, we opened and closed it and felt tight so we took it back apart and saw the seal has slid out of place and it got crushed. we straightened it out best we could and put it back in and it sealed thankfully. but because it was bent the motor didn't have enough power to close it all the way so the light stays on all the time. So I will have to order new seals. the other one for the black line was lower and super easy to install and works awesome. closes all the way and light goes out showing its closed. Also it has super short wires to the open and close switch so I bought longer wire and just cut the switch wires in half and bought connectors rewire it so I could mount the switches inside the RV. its awesome, and I bought a 110v to 12v box (I can't remember what its called sorry) to hook the power wires right up to the wall outlet. because the ones that came with it are only like 12 inches long. so they assume you will have to buy wires to get it to power. Otherwise its pretty easy to install, it was a little harder for the grey line because it was in a tighter space, but with two people it was much easier. now that I have everything hooked up I love it. the switch is inside and I just push the button, no more going outside.

## Frequently Bought Together

- BARKER Manufacturing Company 24140 1.5" Auto-Drain
- Valterra T1001VPM Bladex 1-1/2" Waste Valve Body with Metal Handle , Black

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*