Type 30 Air Brake Diaphragm
- 2.50" Stroke
- 8.00" Diameter
These diaphragms are SAE J1450 tested and approved to over one million cycles. The diaphragms are made of a blended rubber with a nylon reinforcing fabric whilch will hold up in even the toughest of conditions. WRP diaphragms are even rated for extreme cold temperatures to -60°F. "Made in USA" is molded into each WRP diaphragm. Also molded in each rubber diaphragm is the WRP logo, the size of the diaphragm and the date code for easy identification and quality control.