---
product_id: 15040882
title: "Cherne 270040 4\" Rubber Test-Ball Pipe Plug"
brand: "cherne"
price: "23.34 OMR"
currency: OMR
in_stock: true
url: https://www.desertcart.com.om/products/15040882-cherne-270040-4-rubber-test-ball-pipe-plug
store_origin: OM
region: Oman
---

# Inflatable design Seals out-of-round 4" size Cherne 270040 4" Rubber Test-Ball Pipe Plug

**Brand:** cherne
**Price:** 23.34 OMR
**Availability:** ✅ In Stock

## Summary

> 🔍 Seal the Deal with Confidence!

## Quick Answers

- **What is this?** Cherne 270040 4" Rubber Test-Ball Pipe Plug by cherne
- **How much does it cost?** 23.34 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/15040882-cherne-270040-4-rubber-test-ball-pipe-plug)

## Best For

- cherne enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Ring and chain assembly prevents accidental slips during tests.
- • **Versatile Fit:** Easily navigates tight spaces like test tees and floor drains.
- • **Natural Rubber:** Exceptional expansion and memory for a perfect seal.
- • **Easy Connection:** Standard tire air fitting for hassle-free inflation.
- • **Pressure Tested:** Handles up to 13 PSI for reliable performance.

## Overview

The Cherne 270040 Rubber Test Ball Pipe Plug is a 4-inch inflatable plug designed for testing DWV systems at pressures up to 13 PSI. Made from natural rubber, it offers excellent expansion and memory, ensuring a tight seal even in out-of-round pipes. Its user-friendly design includes a standard tire air fitting for easy inflation and a safety ring and chain assembly to prevent loss during testing. Perfect for professionals needing reliable performance in tight spaces.

## Description

Cherne 270040 4" Rubber Test-Ball Pipe Plug

## Features

- Test ball plug 4 in. nominal size
- Tests DWV systems at pressures up to 13 PSI/30 ft.
- Natural rubber body provides excellent expansion
- Inflatable design can be inserted through a test tee to seal out-of-round pipe and hard-to-access openings
- Utilizes a standard tire air fitting for easy connections
- Ring and chain assembly helps prevent the plug from being drawn into DWV systems during tests
- Made of natural rubber for excellent expansion and memory.
- Seals both round and out-of-round pipe.
- Zinc-plated steel chain and ring handle acts as an anchor to prevent plug from sliding down a line.
- Fits easily through test tees, sanitary tees, floor drains, and other "tight" situations.
- Size 4 in

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Rubber |
| Brand | Cherne |
| Color | Black |
| Product Dimensions | 3.25"W x 6.5"H |
| Item Weight | 0.7 Pounds |
| UPC | 094717297877 784497427273 675115270046 |
| Global Trade Identification Number | 00675115270046 |
| Number of Items | 1 |
| Manufacturer | Cherne |
| Part Number | 270040 |
| Item Weight | 11.2 ounces |
| Country of Origin | China |
| Item model number | 270040 |
| Is Discontinued By Manufacturer | No |
| Size | 4 Inch |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement System | inch |
| Included Components | (1) 4 in. Rubber Test Ball Pipe Plug |
| Batteries Included? | No |
| Batteries Required? | No |
| National Stock Number | 4730-01-280-9718 |

## Product Details

- **Material:** Rubber
- **Brand:** Cherne
- **Color:** Black
- **Product Dimensions:** 3.25"W x 6.5"H
- **Item Weight:** 0.7 Pounds

## Images

![Cherne 270040 4" Rubber Test-Ball Pipe Plug - Image 1](https://m.media-amazon.com/images/I/71iQvf5CxAL.jpg)
![Cherne 270040 4" Rubber Test-Ball Pipe Plug - Image 2](https://m.media-amazon.com/images/I/818tORQw3CL.jpg)
![Cherne 270040 4" Rubber Test-Ball Pipe Plug - Image 3](https://m.media-amazon.com/images/I/A1qu3BRRzKL.jpg)
![Cherne 270040 4" Rubber Test-Ball Pipe Plug - Image 4](https://m.media-amazon.com/images/I/81okXtfY-uL.jpg)
![Cherne 270040 4" Rubber Test-Ball Pipe Plug - Image 5](https://m.media-amazon.com/images/I/71ybBG8etuL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: I just ordered the 4” ball and hoping it will expand large enough to fill a 5 1/2” pipe. Will this work or do you have a bigger one?**
A: I bought some pills that claimed they could expand my 4" tool to 5.5".  We're both out of luck, buddy.

**Q: how is this product filled with air? can you use a bicycle tire air pump or must it be an aircompresor?**
A: We used a portable air tank, that we filled at the local gas station. The fitting is for a car tube type valve, not sure if a bicycle pump has the same fitting, but if so it should inflate the product. We have such confidence in this that we have purchased another one just as a stand by.

**Q: How big does this inflate to. I have an old size that is 5 terocada pipe. Would this be able to plug that pipe?**
A: 4.25" is max for a 4" plug

**Q: Would this product create an air tight seal?**
A: I filled a 4" sewer line up with water and plugged it with the test ball plug and had no leakage. So it works well for water. There was no pressure in the line, so if you are talking about air pressure and how much, not sure if it was designed for that.

## Frequently Bought Together

- Cherne 270040 Rubber Test Ball Pipe Plug, 4" , Black
- VIAIR 6 ft. Air Extension Hose for Portable Compressors, Black, P/N 00016
- Cherne 270032 Test-Ball 3-Inch Plug , Black

---

## 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.com.om/products/15040882-cherne-270040-4-rubber-test-ball-pipe-plug](https://www.desertcart.com.om/products/15040882-cherne-270040-4-rubber-test-ball-pipe-plug)

---

*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-01-27*