These BetaMop II Refill heads feature a high-capacity, seamless, 100% knitted polyester head constructed of tubular polyester. The durability and low contamination characteristics of this head design make it an ideal choice for floor cleaning in critical environments. The BetaMop II is constructed entirely of corrosion-resistant materials and is designed to be used with most wring-bucket systems. The quick opening clamp allows the BetaMop II heads to be changed easily. BetaMop II is the economical choice for floor cleaning in both electronic cleanrooms and sterile environments.