The SS4-4 stainless steel support strap introduces enhanced stability and protection to your tankless water heater ventilation system. Prevent movement and exhaust leaks by fortifying your piping with a system of support straps. Support Strap: Add valuable support and enhance the sturdiness of your N-Vent ventilation system with stainless steel support straps that span from your wall to your piping. Features: High temperature rated stainless steel Helps protect and support venting Ensures long term tight seals Includes screws Introducing the latest advancements in tankless water heater technology for your home Noritz tankless hot water heaters are both eco-friendly and energy efficient providing savings up to 40% in utility costs. Their gas water heaters warm water on demand which means you ll always have hot water and it will never run out.