Fuji 2042 1Qt. Cup Assembly Includes the 2024 Pressure Tube, a fitted 2036 Gasket Contains a Diaphragm. This prevents paint entering the pressure tube. It acts as a shield Compatible with M-Model Spray guns Includes the 2024 pressure tube, a fitted 2036 gasket Contains a diaphragm. This prevents paint entering the pressure tube. It acts as a shield Compatible with m-model spray guns Convert your Fuji gravity feed m-model to bottom feed spray gun