Dolph Microwave Waveguide Termination Load

https://www.dolphmw.com/products/waveguide-termination-load/

Dolph Microwave's standard product line of low power terminations utilizes precision conical load elements for optimum electrical performance. This series of terminations is designed for low power input. VSWR is less than 1.05 over the full waveguide bandwidth. It is divided into dummy load(low power), high power load, and water load, etc.