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Holdrite HFPWD4 is a water dam designed for use with #4 firestop sleeves and #5 hollow sleeves. It adds two inches of overall height to the Holdrite HydroFlame ProSeries sleeve. This product is load-rated for riser clamp support, ensuring reliable performance.
This water dam impedes water when used with cast-in-place sleeves and is installed after the concrete pour and safety cap removal.
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