Linea, Italian for line, exemplifies the principle of minimalistic design. The contemporary design and Linear features of the LINEA® bath offer a modern aesthetic. The clean exterior silhouette of the Linea® bathtub continues on the interior. Strong and durable, acrylic Jacuzzi® bathtubs are reinforced with a proprietary fiberglass/resin formula that ensures a long-lasting quality surface. The non-porous characteristic of acrylic defends against penetration of microorganisms into the surface. Hydrotherapy (The therapeutic use of water) - Jacuzzi® bathtubs are ergonomically designed to maximize the benefits of hydrotherapy, allowing people of all body types to fully immerse in warm water. Benefits of a Full-Body Soak: 1. Relieves the weight of gravity on joints 2. Provides 360-degree support for sore and tired limbs 3. Decreases swelling and inflammation 4. Increases circulation and oxygen in blood cells Pure Air® Bath adds soothing bubbles to your soak. Thermal Lumbar Comfort™ (TLC ) air injectors target relief to the lower lumbar area, a common trouble spot. TLC is a unique part of the Pure Air® bath experience.