When flushing an A/C system, it is strongly recommended that you fit a chip filter to the suction line in order to protect the compressor. This is especially advisable when you’ve replaced the compressor, as the filter will keep any residual particles away from the newly fitted unit. For best results, the filter should be replaced after every flushing process, for each vehicle. This replacement filter is designed for use with the WAECO Universal Flush Containers.