The sprinkler unit measuring 700x650 mm ( + - 50 mm) of increased mechanical strength, with high cooling efficiency, is made on a welding machine from corrugated tubes with a diameter of 48 mm. The cooling efficiency is 7-8 degrees from one tier. When installing sprinklers in two tiers, the cooling efficiency is 12-13 degrees. Our polymer sprinkler blocks are able to take the hydraulic load on the fan cooling towers according to the project of 7200 cubic meters/ hour, actually took 12300 cubic meters / hour, which is 71% more than the design capacity. In tower-type cooling towers, the flow rate of circulating water on an area of 1,200 m2 was 27,000 cubic meters per hour. The product has a service life of at least 20 years.