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Ríor built with terminal cork. The water is collected in a container where a 5 W pump goes hidden by a detachable lid made of terminal cork, from this container and through a rubber #233, we take the water to the beginning of the rí or where it forms a closed circuit. The channel is 5 cm. The slope is approximately 13-14 %. The 40 cm río channel is resin.
Being a handmade product, there may be slight variations.