We want to see you in our Mx4 classes! Mx4 is a motivating, result driven program. 45 minutes of group HIIT workout. Get Inspired. Get Together. Get Results. Contact Delta Valley Health Club for a free trial or Call 925-240-2990 and speak with Membership and mention the code #DVACFB #DVAC #DeltaValley #BetterInBrentwood #BrentwoodCA #MX4 #CircuitTraining #eastBay