Dranjer JS15


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The Dranjer JS15 is a special-designed valve that mounts on sump pit covers. The JS15 allows liquid drain to drain in, but prevents gases (radon, odours, and bugs) from coming up. We recommend this product where the sump pit functionality is extended beyond its primary purpose (e.g., weeping tile drainage) to also act as an emergency measure that can help reduce the impact of basement flooding events (e.g., pipe bursting).

The JS15 is suitable for installation alongside a sub-slab depressurization system that draws up to 0.8 inches of water column (measured at the sump pit).


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