This wet/dry vac attachment is great for unclogging sinks, tubs, and showers by pulling out the clog rather than pushing the clog further in. Fits 1-1/4", 1-1/2", and 2-1/2" hoses. Helps retrieve jewelry, valuables, coins, or other objects dropped down the drain. Reduces damage to pipes. Safer and more environmentally friendly than chemical drain cleaners. Saves the time and effort required to disassemble pipes and is easy-to-use.