600d Oxford Premium thick air conditioner leaf guard: This ac unit winter covers outdoor is resistant to rips and tears with waterproof UV-stabilized coating and breathable tarpaulin material to protect your outdoor air conditioner from natural damage. Durable to use and won’t crack in the cold winter. Prolong A/C life and save money: Durable sturdy ac condenser covers for central air conditioner vent unit, during the winter, is to minimize damage from snow, ice and wind. Covering the unit also prevents loose leaves, branches,twigs,grass and other debris from getting into it. Easy to install and safety: 4 sturdy and Heavy duty bungee cords help this outside air conditioning covers for winter securely fixed to the each side of A/C unit prevent the wind from removing the cover, metal hooks with plastic buckles to ensure safety. Ventilation design: The oxford cover for central air unit just covers the top of the air condition, which allows the sides of the unit to breathe,preventing moisture and condensation build up. Universal fit: This air condition covers for outside units can prolong the service life of air conditioner. AC top unit dimension smaller than 25 x 25 inch, please choose 28 x 28 inch. such as 25 x 25 inch, 24 x 24inch, 23, 22, 21 ect. br 2. AC top unit dimension more than 25 x 25 inch less than 30 inch, please choose 32 x 32 inch. such as 26 x 26 inch, 26.5 x 26.5 inch, 29×29 inch ect. br 3. It will be our pleasure to help you! br