The 34C and 90B Series' parking brakes from Eskridge eliminate the need for a pressure reducing valve, as they allow for full system pressure capabilities up to 5,000 psi. According to the company's press release, brakes are typically offered with maximum release pressure up to 3,000 psi. The 95C Series has an SAE "C" mount and the 90B Series has a "B" mount with the high pressure option. Eskridge is a manufacturer of planetary gear drives, multi disk brakes and diggers.