The DEI9733-1.40MHz from Dynamic Engineers is a Band Pass Filter with Frequency 1.3 to 1.5 MHz, Bandwidth 200 kHz, Center Frequency 1.4 MHz, Insertion Loss 4 dB, Rejection 60 dB@± 300. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9733-1.40MHz can be seen below.