The BATGuard™ Pro is a 10 ft long boom consisting of a maze of MEPMix™ plus specially designed media wrapped in a heavy-duty filter material. Duty cycle approximately 75 to 130 cleanings. This improved model has reflective striping to make it easier to see and is packed with approximately 50% more sponge than the original Gutter Critter Pro for more duty cycles. NEW for June 2018 - NEW 170% stronger skin for heavy duty work in the toughest environments!