NOZZLE HOLDER ALUMINUM A full range of aluminum nozzle holders to suit our range of blast hose products. Internal grip rings bite into the blast hose for a safe and secure fit and retaining screws provide additional holding power without penetrating the inner hose layer. NHA 3/4 MaterialAluminumSize3/4″Diameter33mm OD NHA 1 MaterialAluminumSize1″Diameter 35mm OD NHA 2 MaterialAluminumSize1 1/4″Diameter48mm OD NHA 3 MaterialAluminumSize1 1/2″Diameter 55mm OD