---
product_id: 71782022
title: "OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines."
brand: "offboard"
price: "VT4642"
currency: VUV
in_stock: true
reviews_count: 8
url: https://www.desertcart.vu/products/71782022-offboard-15-in-black-rat-guards-against-rats-and-mice
store_origin: VU
region: Vanuatu
---

# Fits ½ to 1 inch lines Easy spring-door installation Trusted by US Navy & Coast Guard OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines.

**Brand:** offboard
**Price:** VT4642
**Availability:** ✅ In Stock

## Summary

> 🚫🐀 Keep pests off your lines and your peace of mind on board!

## Quick Answers

- **What is this?** OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines. by offboard
- **How much does it cost?** VT4642 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/71782022-offboard-15-in-black-rat-guards-against-rats-and-mice)

## Best For

- offboard enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Patented spring door design allows quick, no-fuss attachment without cutting or damaging lines—protect your assets in minutes.
- • **Military-Grade Reliability:** Endorsed and used by the US Navy, Coast Guard, and NOAA vessels, guaranteeing top-tier durability and performance.
- • **Robust, Made in USA Quality:** Crafted domestically with premium materials, combining strength and longevity for peace of mind in any environment.
- • **Multi-Size Options for Every Vessel:** Available in 10, 15, and 17-inch sizes to perfectly match your boat or home setup, ensuring tailored rat and mouse defense.
- • **Universal Fit for Versatile Protection:** Adjustable inserts fit mooring and utility lines from ½ to 1 inch diameter, ensuring seamless adaptability for boats and homes alike.

## Overview

The OFFBoard 15-inch Rat Guard is a US-made, military-grade protective device designed to prevent rats and mice from climbing mooring or utility lines between ½ and 1 inch in diameter. Featuring a patented spring door for easy installation and adjustable inserts for versatile fit, it’s trusted by the US Navy, Coast Guard, and NOAA vessels. Ideal for boats over 26 feet and home utility lines, it offers durable, hassle-free rodent protection.

## Description

The OFFBoard Rat Guard is used on mooring and power lines on your boat and utility lines at home. The patented spring door allows for easy installation after the lines are deployed. Just open the door, place on the line and let the spring door close. The Guard squeezes the line with a firm grip and does not cut. Three sizes available. The 10-inch Rat Guard can be used on any mooring lines that are less than ½ inch in diameter and can also be used on a 7/16 inch braided mooring line. This size is often used for home utility lines too. The 15-inch Rat Guard can be used on any mooring lines that are ½ inch to 1 inch in diameter. It is perfect for houseboats and boats over 26 feet long. Included with the 15-inch Rat Guard is a set of four inserts that adjust the size of the guard opening to 1/2, 5/8, 3/4, and 7/8 inch diameter. enabling them to be used on various sizes of mooring lines. Also used for home utility lines. The 17-inch Rat Guard can be used on any size motor yacht, ship or boat over 70 feet that uses mooring lines 1½ inches to 2¼ inches in diameter. They can also be used on 2½ lines without the insert Instructions are included on how to install the plug-ins to meet the specific needs of individual applications. Used by the US Navy, the US Coast Guard and NOAA vessels. Available in black or white.

## Features

- 15-inch guard has 4 inserts for mooring lines 1/2, 5/8, 3/4, and 7/8 inch diameter. Also fits home utility lines
- For on your boat or home utility lines.
- lines that are ½ inch to 1 inch in diameter.
- Used by the US Navy, the US Coast Guard and NOAA vessels.
- Made in U.S.A. Available in sizes, 10, 15 and 17 inch

## Images

![OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines. - Image 1](https://m.media-amazon.com/images/I/41UL-cgyCTL.jpg)
![OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines. - Image 2](https://m.media-amazon.com/images/I/614UwocJgkL.jpg)
![OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines. - Image 3](https://m.media-amazon.com/images/I/61AMeAg2E1L.jpg)
![OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines. - Image 4](https://m.media-amazon.com/images/I/51tJqwmqcxL.jpg)
![OFFBoard 15-in Black Rat Guards Against Rats and mice Climbing Aboard Your Boat or in Your House. Shields Easily Attach on Boat Mooring Lines or Home Overhead Utility Lines. - Image 5](https://m.media-amazon.com/images/I/61AMeAg2E1L.jpg)

## Questions & Answers

**Q: What is the purpose of the spring on an electric cable?**
A: There is a spring loaded “flap” that swings open to allow you to clamp the guard onto the wire. There’s also also different sized grommets to fit snuggly onto different size wires. Hope this helps.

**Q: How many do you get for $70?**
A: I'm guessing one.  That's some expensive plastic, but it does work really well.  The price has gone up a good amount since I got mine.

**Q: I see that this works on plastic rats in the pictures, but what about real ones?**
A: Haha Yes it works on real ones as well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A really nice product. I was unsure of it’s practicality and ...
*by N***H on May 3, 2018*

A really nice product. I was unsure of it’s practicality and while I waited for it to arrive, I almost convinced myself it wasn’t going to work for me, but it did!I got the 15” Guard to keep the rats from using the cable wires to get on the roof. The 15” gaurd has the advantage of the 10” of interchangeable hole inserts to get proper fit. After putting it on the wires I slid it up the wires closer to the pole side. That way the rats don’t have a roof ledge they could possible jump to, and it is less noticeable. I honestly can’t imagine the 10” being large enough for a rat to not jump over, but even if it is, the inserts make the 15” a no brainer. And someone mentioned weight, it was totally light enough for my intended use. Nice product

### ⭐ Seemed like a great idea
*by A***R on November 25, 2017*

Seemed like a great idea. Got it on the wire and the wind took it to the other side of the wire where it is now useless. Waste of money.

### ⭐⭐⭐⭐⭐ Easy installation
*by T***K on February 17, 2022*

We installed on our power line. Easy, low profile solution.

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-26*