PANASONIC ET-SFR320 original filter for PANASONIC PT-DS12K, PT-DS12KE, PT-DS12KU, PT-DW11K, PT-DW11KE, PT-DW11KU, PT-DZ10K, PT-DZ10KE, PT-DZ10KU, PT-DZ13K, PT-DZ13KE, PT-DZ13KU