Specialty Sales is your trusted source for agricultural liquid systems and John Guest fittings. Agricultural plumbing supplies are a growing necessity in today's spraying climate. We use only the best quality John Guest fittings and tubing to supply fluids to the application point. Whether you are applying herbicides, pesticides, or any liquids, John Guest fittings are the most trusted in the farming industry. Specialty Sales and John Guest components are a great match for our customer's agricultural plumbing needs.