Blue Wall Mounted Air Conditioning Cleaning Bag Split Air Conditioner Cleaning Washing Cover Waterproof Protector for 1P/1.5P/2P/3P Waterproof Material, Sewing Quality Material It has an external water outlet that allows you to drain the water into the bucket Waterproof, no water leakage. Non-toxic.Good sealing. There is no water pipe on the computerSpecification:Color: BluePackage List: 1 pc. Wash Air Conditioner CoverPurchase by Power Level:Example 1: for 12000BTU, need 1-1.5p cover,Example 2: for 18000BTU and 24000BTU, need 2-3p cover. Calculation formula: ( 1 BTU x 0.293 = 1 W, 1P = 2500W)(The above is just a personal suggestion, please measure the circumference of the product for purchase)Size M is for 1-1.5P air conditioner, perimeter/perimeter within 2.4 meters. L size is for 2-3P air conditioner, circumference less than 3.2 meters. Note: 1-3cm(1 inch = 2.54cm) error may exist due to manual measurement, please understand. Color deviation may vary due to different monitor settings. Color item displayed in photos may vary slightly when showing on computer monitor since monitors are not calibrated by themselves