Number of Adapters: 12pcs. Our 0.79gal manual transmission fluid pump is here to streamline the process and give you a hassle-free experience. Easy to Use: You need to open the filling cap, fill the unit using a funnel(not included), tighten the cap, connect the dispensing hose, use the correct adapter, and then insert it into the transmission opening after draining used oil, and use soft grip pump handle to pump liquid from the filler unit to the vehicle.