Liquid Level Probe Application Industrial Number of Probes 4 Probe Lengths 12 in 18 in 24 in 36 in Process Connection 4 in 150lb Polycarbonate Flange Probe Material 304 Stainless Steel and PTFE Material of Construction NEMA 4X Polycarbonate Housing Special Features Water Proof Probe For Use With Lumenite WFLTV-TM WFLTV-SM and WFLTV-DM Level Controllers