Check below for available tone filters.
These are for Minitor II, Director II, and Quick Call II.
Email first to make sure we still have it before buying.
Don't see what you need? Tone filters work to within 0.7% up or down.
We found they will even work on a wider range in some frequencies.
Email us, we can test a close filter/reed to see if it works on the tone you need.
These are tested before they go out the door.
Thanks for looking.
Updated May 2024
Frequency Designation Quantity
288.5 - 138 - 3
296.5 - 108 - 9
321.7 - 140 - 3
330.5 - 110 - 7
339.6 - 141 - 1
346.7 - CZ - 3
349.0 - 111 - 6
368.5 - 112 - 3
378.6 - 143 - 5
384.6 - DZ - 8
389.0 - 113 - 1
426.6 - 0EZ - 10
426.8 - EZ - 1
433.7 - 115 - 1
457.9 - 116 - 1
473.0 - - 1
473.2 - FZ - 1
539.0 - 119 - 6
547.5 - 003 - 1
569.1 - 120 - 2
582.1 - HZ - 12
584.8 - 151 - 1
600.9 - 121 - 8
607.5 - 007 - 1
634.5 - 122 - 1
645.0 - - 1
651.9 - 153 - 1
669.9 - 123 - 2
707.0 - - 2
716 - - 1
716.1 - KZ - 5
746.8 - 125 - 1
749.0 - F03 - 31
802.5 - 20 - 4
832.5 - 127 - 2
855.5 - - 1
937.5 - 29 - 1
953.7 - 160 - 2
992.0 - P11 - 2
1034.7 - 131 - 1
1057.5 - - 1
1082.0 - P13 - 2
1084.0 - OPZ - 7
1092.4 - 189 - 9
1122.1 - OPA - 1
1122.5 - 190 - 2
1232.0 - P16 - 3
1251.4 - 194 - 3
1285.8 - 195 - 7
1291.0 - - 1
1414.0 - - 2
1598.0 - P22 - 2
1800.0 - - 3
2043.0 - - 6
2084.0 - F16 - 5
2150.0 - - 1
2167.0 - - 6
2361.0 - P31 - 1
2440.0 - F18 - 35
2688.0 - P34 - 4
2753.0 - - 3
2932.0 - P36 - 1
3487.0 - - 1
NLN8503A
349-2
410.8-1
426.6-19
445.7-3
457.9-1
569.1-2
582.1-18
716.1-16
832.5-5
855.5-1
1034.7-1
1063.2-1
1092.4-1
112.5-2
1285.8-1
1321.2-1
1395-1