TRIPP LITE SRFILTER RACK ENCLOSURE SERVER CABINET FILTER KIT 25U / 42U 45U 48U. Tripp Lite SRFILTER rack accessory. The SRFILTER comes prefabricated and ready to install in standard 48U rack enclosures on the inside of the door. Vertical Velcro strips will need to be trimmed accordingly to accomodate 45U, 42U and 25U enclosures. When […]