Grizz’s Power House Gym Return to Central California Businesses Directory Grizz’s Power House Gym Claim Listing Return to Central California Businesses Directory Description Details Address 629 N. Irwin St. City Hanford State California ZIP Code 93230 Phone 559-707-0280 Listing Category Fitness Club - Listings Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?