Independent test lab shows a competitor uses soda lime glass, instead of borosilicate. METAGLAS fused sight glasses use borosilicate glass that meets the requirements of USP Type II, DIN 7089 and DIN 7080. See test results.
Cytotoxity Test Results.
METAGLAS sight glass is safe for hygienic applications. See results of two cytotoxicity tests:
A METAGLAS fused sight glass has excellent corrosion resistance. A lab tested three sight glasses in an acid bath: a borosilicate METAGLAS sight glass (labeled BORO), a soda lime sight glass (labeled B270), and a competitor sight glass (labeled BORO Plus). See how METAGLAS compares.Photo shows the difference.