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What is the difference between a “J” style louver blade and a “K” style?

April 26, 2017blade louver style

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What is the difference between a “J” style louver blade and a “K” style?

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“K” style blades incorporate an additional offset, or “rain hook” in each blade which is intended to provide additional protection against water penetration. The actual performance of the two styles is very similar.