SS3-1 Noritz Stainless Steel 1" Clearance Support Straps (Qty 1 = 5 Sets) The SS3-1 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.High temperature rated stainless steelHelps protect and support ventingEnsures long term tight sealsIncludes screwsQuantity 1 = 5 Sets