Fits toilets from any manufacturer including Kohler, Toto, American Standard and all others. Operation: Sucks air inside clogged pipes to produce a large difference in air pressure. The water then evacuates the plug to unclog the duct. The airtight tube has a handle that increases back pressure as you pull, providing higher suction pressure than a regular suction cup. Special Design: A compact shape that loosens packed debris in pipes, toilets, tubs, showers, sinks and more. A suction cup unblocker for toilets with support. Excellent quality: we use natural rubber, thermoplastic polymer (ABS) and stainless steel for our unblockers. 1 manual unblocker for toilets, sinks, showers, bathtubs and pipes.