The Wg3 is the second version of the FUMO heat management system or screen.
The Wg3 is a heat management system manufactured by FUMO, it prevents coals to touch your shisha tobacco. For this, the base of the Wg3 has assymetric holes to let a significant airflow through the system. When smoking with the Wg2, the heat will be transfered by the aluminum, but the ashes will fall in between the two screens.
The Wg3 is different from the Kaloud Lotus. The Lotus fits inside the bowls, or stay on top, as the Wg3 comes around the top of the bowl, so be careful, because it won't fit with bowls bigger than its actual diameter. It's perfect for FUMO XL bowls, and other small diameter bowls, but won't fit AMY Silicone bowls, Saphire bowls, or other bowls that might be compatible with Kaloud Lotus heat management systems.