Pleated washable 10 inch x 2.5 inch housing used in under sink counter top and inline housings cartridges are described as a  ‘surface filter’ which means that once the outside  surface of the fabric is soiled it needs to be  washed. Can be washed and re-used up to 3-4  times before replacement  excellent pre-filter for removing large solids and  organic matter in dam, tank and bore water. The  cartridge has a large surface area to maximise its  efficiency, resulting in fewer change outs and is  ideal for low pressure situations  Suitable for domestic, tank water, irrigation, light industrial applications.