About this App- M-Seal Masters Club App offers rewards to Plumbing Contractors and Plumbers using M-Seal range of products. MMC App is designed by your trusted partner in plumbing – M-Seal & it provides a platform to earn rewards, gain knowledge and connect with your peers around you. This app is created to empower and enable our users to implement best plumbing solution and gain benefits. Following are the key steps in availing the benefits: Register: You can register yourself by first downl