Product Highlights Excellent chemical compatibility with 316 construction and ETFE cable Lightning and surge protection on PBLT2 models Maintenance free vent filter UL approved intrinsically safe on PBLTX models Large diameter, non-clogging, damage resistant, 316 SS diaphragm seal range 10 psi (23.09 ft H2O) [7.04 m H2O] 70 ft (21.3 m) polyurethane cable