These Three traps (small, medium and large) cover all HF bands. All can be used at any higher frequency. The smaller versions merely save weight.
[ Small & Medium ] -- For 16.9 MHz and 11.8 MHz and higher
[ Small & Medium ] -- Image flipped
[ Large ] -- For 6.8 MHz and higher
[ Large ] -- Image flipped
[ QST May 2018 ] -- Trap article