--- product_id: 72994482 title: "33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch, Red" brand: "oatey" price: "AED 59" currency: AED in_stock: true reviews_count: 13 category: "Oatey" url: https://www.desertcart.ae/products/72994482-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4 store_origin: AE region: United Arab Emirates --- # 4-inch pipe fit precision ABS reinforced durability 17 PSI pressure rating 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch, Red **Brand:** oatey **Price:** AED 59 **Availability:** ✅ In Stock ## Summary > 🚀 Seal it, test it, trust it — the pro’s choice for flawless pipe plugs! ## Quick Answers - **What is this?** 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch, Red by oatey - **How much does it cost?** AED 59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/72994482-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4) ## Best For - oatey enthusiasts ## Why This Product - Trusted oatey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durability That Lasts:** Constructed with ABS glass-reinforced plastic and galvanized steel components to resist rust and corrosion in long-term use. - • **Unmatched Pressure Seal:** Mechanically expands to hold up to 17 PSI, ensuring leak-proof pipe testing and peace of mind. - • **Trusted by Professionals:** Backed by Oatey’s century-long reputation and 4.7-star rating from over 1,800 users—join the plumbing elite. - • **Chemical-Resistant Reliability:** Natural rubber O-ring offers superior expansion and memory, maintaining a perfect seal even in harsh environments. - • **Effortless Tool-Free Installation:** Extra-large wing nut for quick hand-tightening—no tools needed, saving you time on every job. ## Overview The Oatey 33403 Plastic Plug is a 4-inch end-of-pipe mechanical gripper plug designed for easy, tool-free installation with its large wing nut. Made from ABS glass-reinforced plastic and galvanized steel, it resists rust and corrosion while reliably sealing pipes up to 17 PSI. Featuring a chemical-resistant rubber O-ring, it ensures a secure, long-lasting seal ideal for both residential and commercial plumbing pressure tests. ## Description Product Description Oatey End-of-Pipe Gripper Plugs mechanically expand to seal the end of a pipe and hold pressure when testing a piping system. The extra large wing nut makes installation easy without tools. Oatey products have earned the trust of plumbing professionals for over 100 years. From the Manufacturer Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry Review: Very easy and good quality sewer cap . - Very good for a sewer clean out cap. Fit perfectly and tightened by hand no tools sealed perfectly. Review: Simple and works perfectly - Does exactly what it’s supposed to do. The wing nut tightens easily and creates a good seal. Great for testing plumbing lines or temporarily plugging a pipe. ## Features - End-of-pipe plug seals or holds pressure to test piping system - Plugs open-ended 4 in. pipes - Made with ABS glass-reinforced plates for added strength - Mechanically seals only at the end of a pipe, preventing plug from falling into stack - Rated for 17 PSI or 40 ft. of head pressure - Can be used in long-term applications - Plastic plug body will not rust or corrode - Natural, chemical-resistant rubber O-ring for excellent expansion and memory - Zinc-plated steel handle - Galvanized carriage bolt to prevent corrosion ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000H5T1PI | | Best Sellers Rank | #3,300 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Expansion Plugs | | Brand Name | Oatey | | Color | Red | | Customer Reviews | 4.7 4.7 out of 5 stars (1,858) | | Global Trade Identification Number | 00038753334035 | | Included Components | (1) Mechanical plug | | Item Dimensions W x H | 3.75"W x 3.75"H | | Item Type Name | 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut | | Item Weight | 8 ounces | | Manufacturer | Oatey | | Manufacturer Part Number | 33403 | | Manufacturer Warranty Description | 1 year limited. | | Material Type | Plastic | | Model Number | 33403 | | Number of Items | 1 | | UPC | 038753334035 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Oatey - **Color:** Red - **Item Weight:** 8 ounces - **Material:** Plastic - **Product Dimensions:** 3.75"W x 3.75"H ## Images ![33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch, Red - Image 1](https://m.media-amazon.com/images/I/61n+a7FAwRL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What size is the bolt and how long is it? Thanks.** A: I measured the bolt at 3/8" threaded diameter with 2 1/4" of threaded length. Since this is not specified in the description and other bolt lengths would work the same, it may be you'd end up with a different bolt length. **Q: Would this stand up to the abuse of an ATV, as a dry storage tube cap?** A: I would think so. It’s pretty sturdy **Q: Will this seal the 31/4" cleanout hole in 4" cast iron sewer line?** A: This plug properly fits a 4" hole. Mine is in use so I cannot measure it. However, I also purchased the 3" plug and I believe it would be more appropriate. At max, it achieves about 3 1/8 seal. If you wrap enough material around the 3" you might get a more usable product. **Q: End of RV slinky storage tube is 4.5 " diameter. When rubber is compressed will this be tight enough to survive vibration of normal travel?** A: It's meant to hold fast in a firm pipe, like PVC. I wouldn't recommend it for a hose or pipe with give. The rubber gasket only moves out a little bit when tightened. Maybe you could get a large hose clamp and tighten it down outside your hose after you cover the end with aluminum foil. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very easy and good quality sewer cap . *by I***H on January 12, 2026* Very good for a sewer clean out cap. Fit perfectly and tightened by hand no tools sealed perfectly. ### ⭐⭐⭐⭐⭐ Simple and works perfectly *by C***N on March 5, 2026* Does exactly what it’s supposed to do. The wing nut tightens easily and creates a good seal. Great for testing plumbing lines or temporarily plugging a pipe. ### ⭐⭐⭐⭐⭐ Best RV dump plug *by R***Y on July 21, 2025* A buddy of mine put in an RV dump that goes into his septic tank. I got this plug and installed it instead of the PVC screw on plug and it's awesome! Those screw on ones are fine when you first buy them, but when they get dirt in the threads, or the plug gets damaged or it's super cold out, etc, etc, they are a pain to remove and re-install. Well, for me they are because I have Parkinson's and my hands don't do what I want them to. This little unit works so easy, and you can use it on threaded or smooth pipe openings and it seals tight no matter what. Even with the tight fit, it is still easy to remove. It's built rock solid too ## Frequently Bought Together - Oatey 33403 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut, 4 Inch, Red - Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3 Inch, Red - Oatey 33400 Mechanical End-of-Pipe Gripper Plug, 1-1/2 in., Red, 1 Count --- ## 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.ae/products/72994482-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4](https://www.desertcart.ae/products/72994482-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-05-12*