Can accomodate walls of varying heights. The Model AG48 provides easy assisted access to above-ground pools and spas. It can be adapted to fit above-ground pools of various heights. This model was previously called the SL-48 or SLE-48. Features -Usually Assisted Operation -Manual 360° Seat Turn -Powered by Water Pressure -Lifts up to 300 LBS. at 55-60 PSI Can be adapted to various wall heights -AG 48 Vertical Seat Travel - 31" -Portable. We provide free in home evaluations and installation for local customers by one of our certified professionals. Call for pricing. 954-888-9292