Inline KDF 55 Shower Filter. Chrome finish to match a modern shower slide unit. This single filter fits at the start of the shower flexi hose which goes between the water entry point and the shower head. The water filter has male and female 15mm (1/2") BSP threads each end to fit most modern showers in NZ. We find this filter does slow the water flow down so it would not be suitable where you have low water pressure.