Compatibility: LANMU Belts is designed for Bissell ProHeat 2X cleaners, fits all Bissell Proheat 2X models 8920 Series,9200 Series, 9300 Series, 9400 Series, 9500 Series, 66Q4 Series and also 73A5 Series. It’s only suitable for standard Proheat 2X models that use the 203-6688 and 203-6804 belt.