Compact, Lightweight Tool For Quickly Opening Clogged Sinks, Toilets And TubsEasily Cleans Out Rust, Grease, Sediment And Scale In Lines Up Through 4" DiameterKinetic Water Ram Uses A Burst Of Compressed Air That Drives A Shock Wave Through Water To Break Up The StoppageSelf-Contained Pump And Pressure Gauge For SimplicityEquipped With Schraeder Valve For Use With External Air Compressor When Clearing Difficult StoppagesStandard Fitting Include Caulking Hose, 4" Tapered Rubber Cone And Five Tapered Rubber plugs For Sealing Openings From 1-1/4" Through 4"Tool And Accessories Stores Easily In Supplied Carrying Case