Profile: Guyco Pty Ltd is a manufacturer of fittings and valves. Our products are primarily related to farm watering, irrigation and plumbing. We serve rural, agricultural, irrigation, plumbing, industrial and rainwater harvesting markets. We also produce plastic compression fittings for rural poly pipe. Our heavy duty threaded fittings are manufactured from high quality glass fiber reinforced nylon. We also carry float valves for troughs and tanks. Our compression fittings are designed for water at a working pressure of 16 bar.