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Model: GWPTE348D
Karmat 110mm Drainage Non Return Valve(double flap)
-The device has two independent covers, which is beneficial during reverse flow because the pressure acting on the first cover is not transferred to the second one.
-The Non Return Valve is equipped with a manual closing lever. Moving the lever from an upright position to flat/flush against the product completely stops the reverse flow of sewage.
-The interior of the device has a smooth surface and is properly profiled, preventing the accumulation of sediments and ensures full, undisturbed flow of sewage