b'Cardinal Systems, Inc. is proud to be one of the worlds leading single suppliers of complete vinyl liner inground pool kits and many other construction materials for the swimming pool industry.With over 40 years of experience, we take pride in being your trusted source for all backyard living essentials. 250 Route 61 SouthSchuylkill Haven, PA 17972570.385.4733customerservice@cardinalsystemsinc.com'