Wholesale Waterproof Silicone Rubber Stopper with Lock – Small Pipe Test Plug & Round Cap Cover
Premium food-grade silicone material ensures durability, flexibility, and 100% waterproof sealing for pipes, tubes, or lab equipment. Precision-molded with a secure locking design to prevent slippage, ideal for plumbing, automotive, medical, or DIY projects. Heat-resistant (-40°C to 230°C) and chemical-proof, perfect for industrial, household, or scientific applications. Smooth surface finish and airtight closure protect against dust, leaks, and contaminants. Ultra-affordable bulk pricing—stock up for high-demand uses like drainage covers, bottle stoppers, or machinery maintenance. Global wholesale supplier with factory-direct quality and unbeatable bulk discounts.