Used to determine the time taken for 4 liters of water to dissipate through an annular area of the surfacing of a pavement under known conditions. Consisting of:
acrylic tube 125 mm inside diameter, 560 mm long, marked at 1 liter and at 5 liters
internal rod with rubber ball valve
wooden base with sealing gasket
Dimensions: 800x450x680 mm Weight: 8 kg approx.
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