The Solar Pathfinder is a must have piece of gear for every installer's tool kit! —Joe Schwartz CEO & Tech Editor of HomePower Magazine
These lenses have slight imperfections (not on shape, only in texture). Because half of the lens is never used anyway (the half away from the sun's path), the imperfections can be placed on the unused side of the instrument with no harm to its' function. Great savings! Quantities limited.
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