1 water filling piece

If you're looking for a professional and affordable automatic water filling system for your aquarium, your search ends here. Our product will meet your needs. Made with high-quality materials, it's practical and durable for long-term use. Resistant to deformation, it will greatly simplify your life. Features: - Colors: White, Blue - Material: ABS - Dimensions: 3.60 x 3.60 x 3.50 cm / 1.41 x 1.41 x 1.38 in - Made of engineering-grade ABS, corrosion-resistant, it is compatible with both freshwater and saltwater. - Ingenious use of the differential pressure principle for easy installation and filling. - Suitable for saltwater aquariums, fish tanks, turtle tanks, and aquatic aquariums. - Equipped with three conversion slots, it adapts to different wall thicknesses. - Slotted attachment: the aquarium wall evenly supports the weight of the water bottle.