M18 18 Volt Lithium Ion HIGH OUTPUT CP 3.0 Ah Battery Pack Flooring Supplies Tear resistant WearTuff™ screen is 3x Tear resistant WearTuff™ screen is 3x stronger than traditional screens and provides extra durability Reversa Screen design allows top or bottom ventilation Heavy duty 5 hinge system provides durability and withstands high traffic FlexGuard closer protects against over extension and helps prevent wind damage Built on a 1 inch thick solid core frame and finished with age and weather resistant DuraTech® Heavy duty weatherstripping seals out harsh weather and drafts Heavy duty handle designed for frequent use includes a keyed lock Surface Prep Maximum Pressure (psi) 180 Compressor Tank Capacity (Gal weather and environmental conditions This increased performance results in the same power and runtime of a M18 REDLITHIUM XC battery in a lighter and more compact package