Suitable for exhaust hose with inside diameter of resp. Ø 40 mm, Ø 45 mm, Ø 51 mm, Ø 60 mm, Ø 76 mm or Ø 90 mm. Provided with drain plugs (for winter storage) and straps to secure the waterlock to the boat are supplied as standard. Types NLP40, 45, 50 have a capacity of 4.5 liters. Types NLP50S, 60, 75, and 90 have a capacity of 10 liters.