This is a special order item and will ship separately.
Please allow 6 - 10 business days (typically) for the item to be processed prior to shipping.
41 x 1.78 mm Viton® rubber, SH75, this is the smaller, thinner one, that goes on the "top" of the dispersion plate, in the run on the inside.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.