Fusion Series treatment systems from Clarus Environmental are drop-in wastewater treatment units designed for use in decentralized applications where effluent quality must meet or exceed secondary treatment standards. It is designed for residential, commercial, and small community applications and is available in treatment capacities, from 450 to 4,000 gpd. All models up to 800 gpd are NSF Standard 40 certified to produce effluent quality of 9 mg/L CBOD₅ and 9 mg/L TSS. The design enables it to be installed without a pretreatment tank on sites with limited space. Effluent disposal options include conventional trenches, dosed systems, drip irrigation or disinfection with direct discharge. 800-928-7867; www.clarusenvironmental.com.