Dometic MSD Fitting f/Large Tank 970 Series Toilets [385320007]MSD Fitting f Large Tank 970 Series Toilets Replaces MSD fittings for Series 975 MSD models. Converts Series 975 and 976 5 gallon models to MSD toilets. *Sold as an Individual WARNING: 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