Ista Multiple Syphon I - 087 Ideal for cleaning gravel without losing the gravel. Suitable for any kinds of gravels. Patented two-way valve, following the narrow of the valve to draw out of the water and fill up your aquarium in ease with one tube. The design of wave edge of the suck-up bottle provides stable water flow when operation. Reliable quality of hose prevent harden with longer life.
