Sisters Fitness is located at 2096 Merrick Ave, Merrick, NY. This business specializes in Health Clubs. Sisters Fitness is open Mon, 8am-8pm; Tue, 8am-8pm; Wed, 8am-8pm; Thu, 8am-8pm; Fri, 8am-8pm; Sat, 10am-6pm; Sun, Closed and accepts All Major Credit Cards, American Express, Cash, Discover, Personal Checks and Visa.