The Drain Blaster is a unique hose-end drain cleaning high pressure nozzle that guides itself and cleans out debris with ease. Perfect for cleaning under sidewalks or cart paths. Ideal for 4-inch to 6-inch drains and catch. Special feature includes wire attach connector for using wire locator to determine draining route. Features include: front jets cut through blockage, rear jets propel nozzle up line and two stage flushing action. Minimum water pressure: 70psi. Made of heat treated grade 303 stainless steel for long life. 3/4-inch hose thread.