Description: ALUMINUM SHELLFIVE MANHOLES4" BUTTERFLY VALVES WITH 4" X 4" GRAVITY TEES4" DISCHARGE OUT REAR4" FILL AND 4" VENT LINE IN REAR HEADFLO CONE AERATION WITH BALL VALVES AT EACH HOPPER2" TOP AIRSPRING SUSPENSIONSTEEL DISC 24.5 WHEELSLP 24.5 TIRES