All Single Phase Applications Product Categories Show All Products Air Conditioner Applications Commercial – Three Phase ES3100 Commercial – Three Phase ES3200 Commercial – Three Phase ES3400 HVAC Maximizer Unit – SP HVAC Maximizer Unit 3P HVAC Maximizer Units Lifetime Surge Protector Lifetime Surge Protector – 3P Lifetime Surge Protector – SP Residential – Single Phase ES1050 Residential – Single Phase ES1100 Residential – Single Phase ES1200 Single Phase Applications Three Phase Applications Residential ES1050 – 50 Amp $199.00 Residential ES1100 – 100 Amps $279.00 Residential ES1200 – 200Amps $499.00 Single Phase HVAC Maximizer Units $250.00 Single Phase LSP $279.00