six kinds high efficiency and pollution-ventilating pumps for bubble tube oxygen diffusers of stone aquarium wall

description: our bubble tubes are made of materials, which are very safe and durable. it is suitable for fresh water and sea water, easy to install in the fish tank, and easy to disassemble and clean. the bubble tube can extend to the length of the fish tank and is convenient to use. the utility model can also fix the pipe firmly, and the pipe will not float in the water. a big bubble tube is worth buying for his aquarium. characteristic: 1 it is made of high-quality non-toxic,