Which one do I choose?
4000 Heavy Duty Microfibre cloth. This is manufactured to withstand excessive (up to 1,500) commercial washing machine cycles. It has the highest quality grade textile and has maximum absorbency. Durability factor of 4000. Extended product life cycle = lower long-term cost.
2000 Medium Duty Microfibre Cloth. Medium absorbency and mechanical action for general purpose cleaning. Hand or machine wash and dry up to 1000 cycles.
500 Light Duty Microfibre Cloth. This is designed for cleaning light soiled areas. Good choice for daily dusting tasks. Can machine wash/dry 500 times. Shorter product life cycle than the other two types.