... of acrylic material, use EVA pillow,5 -person seats.BALBOA/SpaRelax control system Acrylic tub Model A520-LLoading ... Quantity:4 sets / 20'GP12 sets / 40'HQGross Weight: 503kgsNet ... , 26A Max.Suctions(UL Approved):2 x 200GPM, 4 x 94GPMFilter Size:50sq.ft.Diverter Valve(pc):1Air ... : YesSparelax Control SystemYes Acrylic bathtub A520-L with 5 seats