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Sandtrapper II was developed for those extreme, high-flashed bunkers so popular with today's top architects. In these settings, Sandtrapper II is the best choice for top performance and complete control over washouts - even on the steepest of slopes, while preventing sand contamination.
At 16 ounces per square yard and 15mm thick this open, aggressive matrix grabs sand particles and keeps them in place while creating a layer where water can move quickly to the drainage system.