The lifespan of plumbing fixtures varies based on factors like quality, usage, maintenance, and material. Faucets, if of good quality, can last 15-20 years. Sinks differ by material, with stainless steel lasting 15-30 years and porcelain/cast iron longer. Well-maintained toilets endure 25-50 years. Acrylic/fiberglass tubs last 15-20 years, while porcelain/cast iron can surpass that. Pipes vary, with copper/brass lasting 50+ years and PVC around 25-40 years. Water heaters: tank 8-12 years, tankless 20+. Garbage disposals range 8-15 years. Proper care and regular maintenance can extend the life of all fixtures.