Here's a description for the 4m length of clear PVC hose with a diameter of 16mm inner and 20mm outer for use with aquariums, ponds, and general applications, suitable for transporting water, gas, air, fuel, and even drinking water to EU standards: The 4-meter length of clear PVC hose is a versatile and reliable solution designed for use with aquariums, ponds, and general applications. With an inner diameter of 16mm and an outer diameter of 20mm, this hose is capable of transporting a wide range of fluids, including water, gas, air, fuel, and even drinking water, making it a multipurpose option for different settings. Manufactured to meet EU standards for quality and safety, this hose is free from harmful chemicals, ensuring its suitability for use with various fluids. Its transparency allows for easy monitoring of fluid flow, which can be beneficial in certain applications. This hose is durable and designed to withstand exposure to different weather conditions and resist kinks, twists, and abrasions. Its length of 4 meters provides sufficient coverage for most applications, while its lightweight and flexible design makes it easy to install, use, and store when not in use.