Jul 23, 2024
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There is no perfect answer to this question. The 1.0 oz GG34 is certainly more durable than the 0.6 oz GG20. This durability increases lifespan but the initial investment is more. Many customers get 2-3 years out of covers but there is no guarantee on lifespan.
This article offers a comparison between Gro-Guard and Agribon.