The inlet valve has a filter screen to avoid impurities blocking the valve body, more practical. Suitable for sauna room, bath place, spa tank, hot spring pool, spa pool, steam room and other controlled water spraying scene. Made of high quality plastic and stainless steel material, durable and wear resistant. When using a sauna heater, you need to sprinkle water to have steam. With this automatic spray device, it will automatically spray water without pouring water and save time. Easy to install and operate, excellent workmanship and stable performance.