Key benefits Reliable seal to prevent leaks, sewage overflow, and insect ingress — useful for temporary or long-term blocking of drain and pipe holes. Durable in harsh conditions — rubber body resists heat and wear; stainless steel components resist corrosion and rust for long service life. Fast, tool-free operation — installs and removes by hand, saving time during maintenance, cleaning, or testing. What it does Expands inside the drain or pipe hole to form a tight, airtight seal that reduces leaks and keeps pests out. Designed for outdoor and demanding environments where corrosion resistance and durability matter. Features and specifications Material: high-quality rubber body with stainless steel hardware. Performance: heat-resistant, wear-resistant, anti-corrosion, anti-rust, strong air tightness, and resistant to deformation. Size: fits openings 38–45 mm (1.49–1.77 inches); overall length 145 mm (5.7 inches). Compatibility: general-purpose rubber expansion plug for pipe hole sealing in kitchens, bathrooms, gardens, automotive, construction, and marine vessels. Easy installation No tools required. Insert the plug into the drain or pipe hole. Turn the T-handle clockwise to compress the rubber; it expands and locks into the hole to form a sealed state. To remove, turn the T-handle counterclockwise; the rubber contracts and the plug is pulled out easily. Practical use scenarios Outdoor storm preparation: quickly seal garden or patio drains to prevent backflow or block debris during heavy rain. Marine and boating: seal deck scuppers or small through-hull openings to prevent water ingress and protect against corrosion in saltwater environments. Home maintenance and renovation: temporarily block kitchen or bathroom drains during plumbing repairs, pressure testing, or when preventing pests from entering. Why choose this plug Combines a resilient rubber seal with stainless steel hardware for a balance of flexibility and strength. Simple operation and clear size range make it easy to select and use for a wide range of sealing tasks without special tools.