Duck Bill Valve Kit - 1-1/2"Dometic 385310076 Duck Bill Valve Kit is for S and T series pumps. It fits models: S12D, S12DAB, S24D, S32D, S115A, S12, 52A, S32, T12, T24, and T32. *Sold per pairWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm, and Diisononyl Phthalate (DINP) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.