The Aqueon Versa-Top Hinged Glass Top Aquarium Lid is a rectangular glass top designed for aquariums with a capacity of 10-20 gallons. Made in the United States, this hinged lid is suitable for all water types and has dimensions of 20 x 10 inches, providing a secure and easy way to access your aquarium while maintaining the tank's water levels. Perfect for fish tank owners looking to enhance their aquarium setup with a durable and reliable lid.