Quality: This swimming pool nozzle is made of white tone and high-quality plastic material, which has a beautiful appearance, is hard and sturdy, and has low wear and tear during use. Applications This return sprinkler head is mainly used in swimming pools and is a good replacement for old or damaged ones. Fits: Spout nozzles with 3.8 cm (1.5 in) male thread are versatile and easy to install. actual. The diameter of our return line nozzle is 6.2cm/2.4in, and the water outlet size is 1.5cm/0.6in; moreover, the exchange type water return jet can work normally at the temperature of -10~ 50. Note: Please pay attention to the wire size and diameter before purchasing. If you have any questions after purchasing, please contact us.