Features: * When the oil filter is saturated and needs to be replaced, the black indicator line on the oil filter will turn red. * Can be cut to size * Universal carbon filter and oil paper filter for cooker hoods * Regular filter replacement will improve cleaning performance. * Alkali resistance, waterproof, high temperature resistance, fire resistance, acid resistance Specification: * Material: non-woven fabric * Color: Black (as pictured) * Dimensions: 57cm x 47cm * Quantity: 3PCS Package list: 1x Carbon Anti Odour Filter (Dimensions: 57cm x 47cm) 2x Grease Indicator Filter (Dimensions: 57cm x 47cm) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.