The µFILTER SF-433.42 from NuWaves RF Solutions is a Band Pass Filter with Frequency 433.17 to 433.67 MHz, Bandwidth 0.5 MHz (3 dB Bandwidth), 0.8 MHz (20 dB Bandwidth), Center Frequency 433.42 MHz, Insertion Loss 3.3 to 4.8 dB, VSWR Input 1.75:1, 2.00:1. Tags: Module with Connectors. More details for µFILTER SF-433.42 can be seen below.