Rola-Chem Pool Sentry Water Leveler Auto Fill M-3000 is a reliable and efficient solution for maintaining the proper water level in pools and spas. Designed to prevent water loss due to evaporation or splashing, this automatic fill system connects to a standard garden hose and adjusts the water level as needed. Its durable, corrosion-resistant construction ensures long-lasting performance in all pool environments. Easy to install and requiring no special tools, the Rola-Chem Pool Sentry helps prevent pump damage and ensures consistent water levels, making pool maintenance effortless.