The Drench-Mate Service Kit Diaphragm & Flapper Rubber is a repair kit that includes flappers and nylon bushings for the Drench-Mate System. The The Drench-Mate system is a unique, high quality pumping system specifically designed for pumping fluids into ruminants. Diaphragm & Flapper Valve only. **Not the 3-ply version. Free Shipping within the US.
Service Kit Diaphragm & Flapper #14 on the parts diagram which is found under the 'Download Tab'
https://www.youtube.com/watch?v=JCwwBEQrMRI&feature=emb_logo