• High-quality rubber plugs designed for the drainage of external air conditioning units • Durable and waterproof rubber material that effectively prevents water leaks and the entry of dust • 20 mm diameter, suitable for most air conditioner drainage holes • Includes 12 adhesive plugs, covering various needs at home or in commercial environments • Easy installation, simply insert the plug into the drainage hole without additional tools • Suitable for both professional maintenance personnel and individual users • High elasticity rubber, with excellent resistance to aging, deformation, and breakage • Prevents the entry of insects, dust, and dirt, helping to prolong the equipment's lifespan and improve its efficiency • Versatility for domestic and commercial air conditioning equipment • Provides reliable protection and ensures trouble-free drainage