Guaranteed Pure Milk bottle

The Guaranteed Pure Milk bottle is a landmark water tower in Montreal, Quebec, Canada, located at 1025 Lucien L'Allier Street. The 6 tonnes (13,000 lb), 10-metre (33 ft)-high Art Deco structure was designed in 1930 by architects Hutchison, Wood & Miller as advertising for the Guaranteed Pure Milk Company.

The giant riveted steel quart of milk was built by Dominion Bridge Company of Lachine. It has a 250,000-litre (66,000 US gal; 55,000 imp gal) capacity.

In 2009, it was restored after years of disrepair, thanks to the efforts of volunteers, $100,000 in private donations, and lobbying by Heritage Montreal.