Looking for a reliable water lock for your yacht's exhaust system? Look no further than Craftsman! Our WLOCKL water lock comes in various capacities to fit different hose diameters. Choose from the 2.6 liter (410x110x190 mm) for a hose diameter of 40mm, the 7 liter (530x150x240 mm) for hose diameters of 50mm and 60mm, the 17 liter (620x190x360 mm) for hose diameter of 76mm, and the 23 liter (630x210x395 mm) for a hose diameter of 100mm. Trust Craftsman for quality and reliability in all your yacht equipment needs. We can calculate and project marine exhaust system for yachts and boats Shown price is for 40 mm, incl. VAT and delivery