M.A. Stewart & Sons Ltd. are the North American exclusive distributor of MOYGRO (known as M&G) a well-known and market acceptable brand of Wafer Style Check Valves for over 30 years. MOYGRO Check Valves are manufactured to the highest standards, with an objective of manufacturing the most versatile Wafer Style Check for the Industrial, Fire Protection and Commercial/Mechanical Industries. In AMSE 125, 150 & 300 Pressure Classes and with body material ranging in Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel and Special Alloys, couple with a multiple seat and stem options allows MOYGO to provide an array of single flapper check valve products for almost any application.