The BPF-BC300A+ from Mini Circuits is a Band Pass Filter with Frequency 260 to 340 MHz, Center Frequency 300 MHz, Insertion Loss 2.5 to 3.0 dB, Upper Rejection 20 to 44 dB @380 to 4000, Lower Rejection 40 dB@ DC to 220 MHz. Tags: Surface Mount, Lumped Component Filter. More details for BPF-BC300A+ can be seen below.