Shop By Featured Category. Business, Office & Industrial. Clothes, Shoes & Accessories. Home, Furniture & DIY. Welcome to Johnston Supplies: Proudly Serving The Local Farming Community For Over 15 Years. This Heavy Duty Cattle / Cow Drinker is a reliable addition to your livestock supplies. The drinker is designed to endure heavy usage. Heavy Duty dual rump rails! Comes with a plastic ball cock. Draining, supplied with removable bung. Bolted to the wall or post. Welcome to Johnston Supplies. Serving the local farming community for over 15 years. We are a family run business and believe in offering quality products for the best price possible. We stock a wide range of Agriculture, Poultry and Equestrian goods. Thank you for shopping with us!