This Dual Lance with consolidated over-under 1/8" pipes offers a thorough cleaning experience. By pulling the trigger, you open up the low side and automatically begin drawing chemical through your downstream injector. Dual Lances are the preferred cleaning attachment for hot water applications by applying chemical via low pressure and then cleaning with a pressurized stream while never having to turn the pressure washer off or change equipment. This 'Karcher Style' Italian Dual Lance has a standard 1/4" Male NPT inlet and twin 1/4" Female NPT outlets with a boot on the end.