Complex sentence: Brac Systems, Inc., is a water treatment and recycling company in Montreal, Quebec, that manufactures and markets residential and Commercial greywater, rainwater and blackwater recycling systems.
Split into simpler sentences: Brac Systems, Inc., is a company the specializes in the development of water saving products for both residential and commercial use. Now Brac Systems manufactures and markets greywater, rainwater and blackwater recycling systems.