I needed a larger filter for a pond pump. i believe this will be a little harder for debris to clog up or for debris to get into the pump and get pushed into the spray nozzle of the pump.
The author remixed this model.
size, length, threaded. it used to not be threaded. i also added the cone o keep it away from the pump. since it will be vibrating and easily knocking silt up. as you can see by looking at the design i changed it alot i only used half of the center with holes from the original