Sungate ThermL™ Comparison Kit

Solarban 60 (2) Clear + Clear and Solarban 60 (2) Clear + Sungate ThermL (4) Clear Solarban 70 (2) Clear + Clear and Solarban 70 (2) Clear + Sungate ThermL (4) Clear Solarban 90 (2) Clear + Clear and Solarban 90 (2) Clear + Sungate ThermL (4) Clear Solarban 65 (2) Clear + Clear and Solarban 65 (2) Clear + Sungate ThermL (4) Clear