LabStrong cartridges are comparable to the Thermo Scientific Barnstead cartridges. Side-by-side testing shows fantastic results for purity and longevity. The LabStrong water purification cartridge is used with the Thermo Scientific Barnstead B-Pure*, E-Pure*, NANOpure*, NANOpure II and NANOpure Quad water purification systems. The water purification cartridge provides outstanding quality you expect from your water system at a low cost. The cartridge is an economical alternative for all laboratories.