- Showing 1 - 36 out of 163 results for "bradford white rg2d40s6n 40 gallon - 38%2c000 btu defender safety system damper atmos. vent high ef energy saver residential water heater (nat gas)"Sort by:FeaturedProduct added to your wishlist! View wishlistSign in to see your saved products on any deviceProduct removed from your wishlist! View wishlistSign in to see your saved products on any deviceSomething went wrong. Please try again later.Product is added to compare already. Please refresh the page.Product is not found in compare. Please refresh the page.5 Products already added. Please delete existing selection to add this.