This article provides essential guidance for buying polyethylene pipes. It covers key factors such as ensuring pipes have valid national and international standards, choosing the right type based on the application (water supply, irrigation, sewage, or gas), selecting proper pressure class and diameter, and prioritizing high-quality raw materials. The article also highlights the importance of checking product markings, securing warranty and after-sales support, and considering reputable brands like Polimer Pars for expert consultation. By following these recommendations, buyers can make confident and reliable choices for their projects.