Threesize bladder drain opener set designed for reliable, pipesafe unclogging. Key features Sizes: three bladders sized for common pipe diameters 12 inch, 1.53 inch, and 46 inch. Pressureresponsive rubber bladders expand securely inside the pipe at 40 to 80 psi to form a tight seal and deliver targeted water pressure against the clog. General metal inlet fitting works with standard garden hoses for easy connection and consistent water supply. Works without mechanical scraping or corrosive chemicals, reducing the need for chemical drain cleaners. Durable, reusable components suitable for repeated household use. Why you need it Accurate and controlled clearing: expanding bladders create a seal that focuses water pressure on the blockage, reducing the chance of pipe damage common with rigid tools. Versatile coverage: three sizes give options for small sink drains up to large sewer lines and outdoor gutters. Cost effective for homeowners and renters who prefer to handle routine clogs without calling a professional. Performance and compatibility Function: waterdriven bladder expands inside the pipe and uses pressure to dislodge hair, grease, soap scum, and other common blockages. Compatibility: kitchen sinks, bathroom sinks, bathtubs, shower stalls, main sewer lines, and outdoor gutters when used with an appropriate hose and water source. Materials: pressureresponsive rubber bladders and a general metal inlet fitting for hose attachment. Practical use scenarios Bathroom sink clogged with hair and soap scum: select the 1.53 inch bladder, attach a garden hose to the metal inlet, pressurize to 4080 psi, and release to push the clog through. Main sewer line or large outdoor gutter blockage: use the 46 inch bladder to form a strong seal and apply water pressure to clear compacted debris. Kitchen sink with grease buildup: use the 12 inch bladder to deliver focused pressure that loosens and flushes the blockage without corrosive cleaners. Contents Three bladder sizes: 12 inch, 1.53 inch, 46 inch General metal inlet fitting for standard garden hoses Simple, reusable, and designed to protect plumbing while clearing common household clogs.