This Blucher® eccentric increaser is manufactured from 316 stainless steel. It features 2 x 1-1/2 in push-fit socket connections with EPDM sealing rings. It is treated with a pickling and passivation finish process. - (850.040.050 S, 850040050S, EI-2x1-1/2-316, EI2x11/2316)