Includes bottle of NaCl electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 1.25 Mil PE, Polyethylene membrane {Yellow cap). Convenient scew-on cap membranes make membrane changes simple and easy.
Response Time (T95 - from 0 to 100%) = 8 seconds Flow Dependence After 4 Minutes = 25% Required Flow Rate = 6 inches/ second.