The New Style Heavy Duty Diaphragm for Fluidmaster (#212 & 242) is engineered for optimal performance in toilet tank applications. This diaphragm, produced by Braxton Harris Company, is designed to withstand high pressure and provide reliable flushing action. Its durable construction ensures longevity, making it a perfect replacement part for your Fluidmaster systems. This diaphragm is easy to install and compatible with various toilet models, ensuring a seamless fit and function. Upgrade your toilet's performance with this essential component that meets industry standards for quality and reliability.