GP Pump Repair Kit flow rate gpm:5GPM but you may find a

but you may find a need for the extra agitation of the rotating nozzle

Choose your orifice size based on your pump's GPM: #13 for 4-6 GPM pumps

and the angles are consistent no matter the orifice size

or the algae on a surface is real black

make sure you insert them with the spring facing the incoming water

GP Pump Repair Kit flow rate gpm:5GPM but you may find aFor replacing check valves on some General Pump pressure washers. If you are having water inlet issues, like pulsation or feel like your not getting the proper water flow out of your gun, insect you check valves for trash or debris. Replace if needed. Check Valve Kit 169 for TSF 66 Series General Pumps. Most often used on the TSF2021 for 8GPM Pumps. Check valve Kit K01 is used on a wide variety of General Pumps including the popular TS2021. Also used