Hello - Nice to see everyone at AIC. Below is the product information/websites for the air filters and water sensor system we recently installed in the Ratti Textile Center for those who asked about the information. Control-A-Flow air filter product description: Style FLT345 is the one we installed. http://www.controlaflow.com/custom/34854/CAF%20Product%20Sheet.pdf Water Sensors (installed by Digital Network Services): We use both WD-1B and WD-2-T sensors. WD-1B (probe) Product description: http://www.kele.com/cgi-bin/navigate.cgi?cat=Model%20WD-1B&js=setuser WD-2-T (tape sensor) Product description: http://www.kele.com/cgi-bin/navigate.cgi?cat=Model%20WD-2-T&js=setuser Best, Becky Fifield Rebecca L. Fifield Assistant Manager Antonio Ratti Textile Center The Metropolitan Museum of Art 1000 5th Ave. New York NY 10028 212.650.2967 [log in to unmask]