United Irrigation Supply is located at 926 Lincoln Ave Ste C, Holbrook, NY. This business specializes in Gardening. United Irrigation Supply is open Mon, 9am-5pm; Tue, 9am-5pm; Wed, 9am-5pm; Thu, 9am-5pm; Fri, 9am-5pm; Sat, Closed; Sun, Closed and accepts Cash, Discover, Mastercard, Personal Checks and Visa.