The pump adapter ULTITOP Dual D5 connects two D5 pumps from Aqua Computer. The article is made of robust acetal and has G1/4" connections.The adapter allows the coolant to flow through the pumps one after the other, doubling the pressure and allowing redundant operation if one pump should fail.As Aqua Computer has placed great emphasis on optimal flow behaviour during development, extremely quiet and smooth operation is made possible.