Review on Essential Values 3-Inch Toto Toilet Flapper Replacement - Premium Rubber Flapper with 🚽 Chain and Hook | Compatible with G-Max, Thu499s, Thu331s, Thu175s & 2021bp Toilet Models by Pranav Osman

Very easy to install. The main thing is a small metal fastener that fits into the damper. You will need to manipulate the needle tip and/or other pliers to ensure the pointed ends are flat and parallel to each other. This is because they are easily out of service and the end where it's not visible can wear down the rubber, drastically reducing the life of the shock. I think they all go that way. So the damper wears out sooner than necessary, and all damper manufacturers sell more dampers. Moreover, even if a plumber installs it, he will not bother with this small but important detail.