For above ground pools up to 18,000 gallons. Delzone for Small Inground Pools For small inground pools up to 18,000 gallons. For inground and above ground pools under 30,000 gallons.
Operation is independent of pool pump system.
Delzone for Medium Size Pools For inground and above ground pools under 25,000 gallons. Designed for operation with pool pump system. Delzone Continuous Operation for Large Pools For heavily used pools up to 60,000 gallons. Operation is independent of pool pump system. Delzone for Large Pools For heavily used smaller pools and larger pools up to 50,000 gallons.