Latex Latex is the generic term for emulsions of polymer in water that is stable. These emulsions can be natural or be synthetically made. This liquid is typically very shear sensitive and requires care when pumping. 4127C 316 stainless steel Many sealing options Low shear Capacities to 160 GPM 1124A Cast iron O-Pro® Barrier seal provides reduced leakage option Low shear Capacities to 250 GPM 4327A 316 stainless steel Many sealing options Low shear Capacities to 800 GPM