CRSSH SERIES 700 BAR HYDRAULIC HIGH PRESSURE SINGLE ACTING BLANK ROLLERS CRSSH Series hollow reciprocating cylinders offer excellent solutions in tensioning, testing and maintenance applications. Hollow cylinder design allows for both pulling and pushing force. Support felt that absorbs eccentric load, reducing its effect and reducing wear Clamping collar threads, piston threads and base mounting holes for easy fixing. Heat-hardened cylinder and piston Rust-resistant and long-lasting paint Single acting Spring pull Hardened hood that can be inserted and removed Dust seal that prevents pollution and increases the life of the cylinder HP700N38FN (3/8 "NPTF 700 Bar) High pressure female auto union and dust cap on all models.