Hope I understand your questions.
It's designed to flush the engine without the need to run the engine.
It's two piece, made of plastic. One piece replaces your factory pisser, during flushing the other piece screws on the end of a hose and then plugs into the new pisser. Easy, quick, quiet flush.
Just be sure to align the new pisser to the direction you prefer, might have to use Teflon tape if it don't tighten to the direction you want.
If you want to run the engine when it's out the water, just use muffs.
Here is their site location of the flush kits.
http://www.thmarine.com/product.cfm?PRID=179