<p>Mitsubishi E12 N87 100 replacement mini split filter set for the following Mitsubishi mini split units: MSZ-WR18NA-U1, MSZ-WR24NA-U1.</p> <p>All of the above indoor units require 2 replacement air filters.</p> <p>NOTE: Factory Original Mitsubishi E12 N87 100 Filter 2-Pack!</p> <p>The Mitsubishi E12 N87 100 mini split filter should be cleaned once every two weeks, and for best performance replace it every 12 months</p> <p>Package of two E12 N87 100 replacement filters for Mitsubishi mini split indoor units.</p> <p>Mitsubishi E12 N87 100 replacement mini split filter part numbers have been changed to Mitsubishi E22 N87 100.</p>