2.4 GHz Bandpass filter WiFi Zigbee Bluetooth ISM from GPIO Labs on Tindie
Amazon.com: Pomya 2450MHz Bandpass Filter, Bandwidth 150MHz, SMA Interface Reduce Noise Band Pass Filter, for 2.4GHz Receivers, Zigbee Systems, WiFi Bluetooth Anti Interference : Electronics
2.4 GHz 2450 MHz Bandpass filter for High Power (2 Watt) Applications – GPIO LABS
Bandpass Filter From 2.4GHz To 2.5GHz With N-Type M/F Connectors