DURABLE MATERIAL - Our IBC cover filter covers are made of durable PE and PVC plastic materials, which are wear-resistant, high strength, weather-resistant, and can withstand frequent use without breaking easily. The filter is made of nylon and can be wash with water for repeated use.EFFECTIVE FILTRATION - PVC fitting inner diameter is 66mm/ 2.59inch; 75.5mm/ 2.97inch. And the outer diameter is: 70mm/ 2.75inch. The filter adopts a fine mesh design and is 200mm/ 7.87inch long, which can effectively filter extra leaves, stones, large particles, etc. added to the liquid in the ton barrel.EASY TO USE - First place the filter cover on a flat surface, press the rubber O-ring into place (flat side facing down), then press the PVC fitting firmly into the rubber ring to secure, finally securely attach the cover to the rainwater IBC tank.