--- product_id: 19264686 title: "Cherne 2-1/2 in. Test-Ball Plug" brand: "cherne" price: "₨24536" currency: SCR in_stock: true reviews_count: 3 url: https://www.desertcart.sc/products/19264686-cherne-2-1-2-in-test-ball-plug store_origin: SC region: Seychelles --- # Inflatable design Seals out-of-round pipes 2.5 in size Cherne 2-1/2 in. Test-Ball Plug **Brand:** cherne **Price:** ₨24536 **Availability:** ✅ In Stock ## Summary > 🔍 Seal the Deal with Confidence! ## Quick Answers - **What is this?** Cherne 2-1/2 in. Test-Ball Plug by cherne - **How much does it cost?** ₨24536 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/19264686-cherne-2-1-2-in-test-ball-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 - • **Secure and Safe:** Zinc-plated chain prevents accidental slips during tests. - • **User-Friendly Design:** Standard tire fitting for quick and easy inflation. - • **Unmatched Versatility:** Easily fits through test tees and tight spaces. - • **Natural Rubber Excellence:** Superior expansion and memory for a perfect seal. - • **Pressure Tested Performance:** Handles up to 13 PSI for reliable testing. ## Overview The Cherne270108 Test Ball Pipe Plug is a 2-1/2 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 secure chain assembly to prevent accidental slips during testing. ## Description Cherne270108 2-1/2 in. Rubber Test Ball Pipe Plug ## Features - Test ball plug 2-1/2 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 2.5 in ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Rubber,Steel,Natural | | Brand | Cherne | | Color | Black | | Item Weight | 5.28 ounces | | UPC | 675115270107 696505374052 | | Global Trade Identification Number | 00675115270107 | | Manufacturer | Oatey | | Part Number | 270108 | | Item Weight | 5.3 ounces | | Product Dimensions | 3.5 x 3 x 5.5 inches | | Country of Origin | USA | | Item model number | 270108 | | Size | 2.5 Inch | | Style | 270108 | | Shape | Plug | | Item Package Quantity | 1 | | Number Of Pieces | 1 | | Measurement System | inch | | Included Components | Rubber Test Ball Plug | | Batteries Required? | No | ## Images ![Cherne 2-1/2 in. Test-Ball Plug - Image 1](https://m.media-amazon.com/images/I/81uWOMoEWNL.jpg) ## Questions & Answers **Q: How do you blow it up** A: It has the same fill valve as your car tire or bicycle tire. Any regular hand or foot pump will work. **Q: Can these be used to block a sewer drain pipe in a basement to attempt to block water from coming into the basement say during a flood?** A: Interesting question. I would think so, but that's only an educated guess; I have not used one for that purpose. For the typical purpose of pressure testing drain pipes, my county's inspection required the system to hold 5 psi for 15 minutes, which this test ball easily held. 5 psi is equal to 138 inches water column, so if the test ball holds water pressure as effectively as it does air pressure, it would hold back water pressure from flood waters 11 1/2 feet higher than where the plug is. I believe the plug could hold back significantly more air pressure than 5 psi. However, performance with water, not air, might be worse because the water could reduce friction and possibly let the plug slip. And then, even if this holds back water rising in the drain pipe, if the water level is high enough, there will be other places it gets into the house. Bottom line - I wouldn't count on it as the primary means of preventing entry of flood water, but as a backup or last resort, it would definitely be worth a try. Especially if flood waters aren't high enough to put significant pressure on basement walls. **Q: What are the chances of this product working on a corregated drain pipe? No pressure involved. Just infiltrating groundwater.** A: No experience with this use, but I'd say good chance it will hold back most of the water, if it's not pressurized. The plug should contact 3 or 4 of the "ribs" inside the corrugated pipe. That said, there's always going to be some head pressure if there's a height difference between the end of the pipe and the source of the water. If you need zero water leaking through, I wouldn't count on this. **Q: does this come with an adapter for an air pump that fits a Presta valve, instead of the standard shrader valve?** A: No, and we found that using a bike pump was not successful anyway. The act of removing the pump hose from the ball allowed too much air to escape. The ball deflated to the point that it was not water-tight. There really is only a small volume of air in the ball. We got the best results using an air chuck mounted on an air hose running from a small compressor. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Worked great *by M***R on Reviewed in the United States on September 8, 2021* I got this for my shower remodel. Sucked I had to pay so much for a one time use. But after my second time of seeing it right my shower pan held water for three days. Kinda over kill but I was impressed. ### ⭐⭐⭐ 3.0 out of 5 stars Easy to use but didn't hold. *by G***G on Reviewed in the United States on May 14, 2021* Placed this in tubing as a temporary fix to stop the backup of water from coming in the basement from a broken outside line. Did not hold- basement still flooded. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars I recommend it *by M***. on Reviewed in the United States on June 21, 2020* Very good ## Frequently Bought Together - Cherne 270108 Test Ball Pipe Plug, 2-1/2", Black - Bluecell World 2pcs 8.25’’ Flexible Extension Tire Valve Adaptor for Universal Cars Truck Motorcycle Bike --- ## 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.sc/products/19264686-cherne-2-1-2-in-test-ball-plug](https://www.desertcart.sc/products/19264686-cherne-2-1-2-in-test-ball-plug) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-05-11*