ADA's filtration system lineup now includes new stainless-steel outflow and inflow pipes. The Metal Pipe Flow P-1 (for outflow) has a movable outflow nozzle that can be moved left and right to create a water flow that matches the layout. The Metal Pipe Flow V-1/V-2 (for inflow) has a removable end cap for easy maintenance. The simple yet sharp design of the Metal Pipe Flow creates a new flow in Nature Aquariums.Metal Pipe Flow P-1 (for outflow・pipe diameter φ13)Metal Pipe Flow V-1 (for inflow・pipe diameter φ13)Metal Pipe Flow V-2 (for inflow・pipe diameter φ17)