Need to fix a GOYEN valve? This K3500 diaphragm kit has you covered. It includes the diaphragm, a nitrile seal, and the spring – everything you need for a solid repair. Nitrile seals are great for resisting oils and fuels, so it’s durable for industrial or agricultural valve applications. Whether you’re maintaining equipment, fixing a leak, or doing routine service, this kit makes the job easier. It’s designed to match original specs for a reliable fit and function. Keep your valves operating smoothly and prevent downtime. Handy for mechanics, farmers, or anyone with GOYEN valve systems. Simple, effective, and ready to get your equipment back in action.