Series A – Spherical Bearing Style 3000 PSI Series B – Cross Tube Style 3000 PSI Series C – Welded Clevis Style 3000 PSI Series D – Threaded Clevis Style 3000 PSI Series E – PMH Tie Rod Style 3000 PSI Series E -PML Tie Rod Style 2500 PSI Accessory Valves Monoblock Valves