Wilo USA announced its entire range of vertical multistage pressure boosting systems has received NSF 61 and NSF 372 certifications. The booster offerings include the CO-Helix, SiBoost, and Helix EXCEL Complete, which are available in single to four-pump configurations. NSF certification indicates a company complies with strict standards and procedures, including verification through extensive product testing, material analyses, and unannounced inspections.