This is our D-Flow Single 1/4 Random Flow Nozzle this is just the price for a single nozzle and does not include the Y connector and secondary Nozzle.
Fluval Evo Owners: Option of 1 1/2 inch nozzle or 2 1/4 inch nozzles, we recommend if you have an upgraded return pump to go with 1 1/2 inch nozzle to gain better performance.
Price is per 1/4 inch Nozzle purchase 2 of these to upgrade Fluval Evo standard duckbill nozzle