HomeHot TubsM Series Hot Tub ModelsM Series Hot Tub Models Mid-sized acrylic hot tubs that perfectly blend indulgence and value.M33L4 Person Lounger33 MassageMax2 Jets84″ x 66″ x 35″ More DetailsM38S5 Person38 MassageMax2 Jets78″ x 78″ x 36″ More DetailsM41L4 Person Lounger41 MassageMax2 Jets84″ x 66″ x 35″ More DetailsM49S5 Person49 MassageMax2 Jets78″ x 78″ x 36″ More DetailsAlso see our: F Series and G Series Hot Tub Models