04-15-2016, 12:10 PM
The CR38 is the 15 inch model. It's spins about 50% faster than the 19 inch model. But don't let that sway you. It has a much smaller motor than the 19 inch model, and therefore has considerably lighter head weight. When it is used for carpet cleaning it tends to hop and chatter on the carpet. The CR48 is the 19 inch model. The 19 inch model is hugely more popular for carpet cleaning!