Installation instructions do NOT accompany this filter. Installation instructions are located in the original user manual that accompanied your appliance! This filter is 5 1/16 x 5 3/8 inches. This original Maytag Microwave Charcoal Filter originally shipped with the following Maytag devices: AMV2175CB0, AMV2175CS0, AMV2175CW0, AMV3204VAB0 This is a true Maytag part! This item is NEW! Don't see your model number? Send us a message as we are happy to help!