What material is the face port of the KM37 made of?

The face port of the KM-37 is made of 1 1/4 inch Lexan, a strong polycarbonate material recognized for its high impact resistance and clarity. Lexan is often used in diving equipment because it can withstand the demanding conditions of underwater environments while ensuring visibility for the diver. Its durability makes it an ideal choice for face ports, which need to be reliable under pressure and resistant to scratches and damage that can occur during diving operations.

Using Lexan provides an optimal balance between safety and functionality. This material can handle the physical stresses it may encounter, ensuring the diver's vision is not compromised while they perform their tasks underwater. The thickness of 1 1/4 inch also contributes to its robustness, making it suitable for the rigors of surface-supplied diving systems such as the KM-37.