#84 3form. 100 Percent countertops are made entirely from post-consumer recycled HDPE plastic—discarded milk and detergent packaging that would have otherwise ended up in a landfill. The product resists UV, is entirely recyclable, and comes in four colors. 801.649.2500. www.3-form.com.

#85 Renewed Materials. Made out of post-industrial aluminum milling scrap, Alkemi is SCS-certified and has 35% recycled material by weight, or 60% by volume. The product comes in two finishes and in a variety of colors. It can be worked like conventional solid-surface material. 301.320.0042. www.alkemi.com.

#86 FireCrystals. For use in indoor or outdoor natural gas fireplaces, eco-friendly FireCrystals have the lowest fine-particulate emissions per unit of heat delivered, the maker says. As a direct replacement for gas or wood logs, FireCrystals emit all the beauty of a burning fire without releasing soot or ash into the environment. Their gemstone look is available in a multitude of colors that add extra interest to the application. 866.875.6615. www.firecrystals.com.

#87 Tiger Mountain Innovations. Rustic-looking Squak Mountain Stone slabs are made of recycled paper, cement, fly ash, and recycled glass. They come in five colors, and each piece is unique, the maker says. The product is 1 1/2 inches thick. 425.486.3417. www.squakmountainstone.com.

#88 ClimateMaster. Tranquility 27 6-ton geothermal and water-source heat pumps use a zero-ozone-depletion refrigerant. Units feature a variable-speed motor and double-isolated compressor mounting. 405.745.6000. www.climatemaster.com.