Add to cart Single Loc-Line Flared Nozzle 1/2 inch NPT $20.90 The Single Loc-Line Flared Nozzle 1/2 inch is very flexible and allows you to adjust your flow and circulate the water in any direction. Water movement provides the following benefits: Heat distribution Increase oxygen dissolved in the water Keep debris and particles suspended so they can be removed by mechanical filters Currents offer resistance for fish to swim against Add to Wishlist