General description 100% brand new and high quality air pump valves made of high-quality environmental protection material. These valves are convenient to use and serve as spare parts for easy replacement. Technical specifications Material: Plastic Color: Black Package Contents: 6 x Air Valves 24 x Screws 18 x Accessories Measurement allowed error: +/- 1-3 cm Compatibility and accessories Suitable for -60 and -80 linear air pumps Usage It is highly recommended to clean your filter every 6 months and replace it once a year.