How dry of upgrade carpet cleaning machine under foam washing mode . Let me show you! KL-TJ638 PLUS Full stainless steel appearance, higher grade, and more rust resistant. Brand new internal structure, 60% longer cleaning time, and bettercleaning effect. High performance water absorbing rod material, with a 50% increase indurability and stronger water absorption.The motor power is larger (550W), with a wider range of applications and greater stability.