... 3pcsWater pipe&valve: 1batch The selling points of our outdoor spa bathtub.1. Acrylic is import from the ... thicker and stronger. 5 years warranty for the outdoor spa.2. Water pumps is the best brand ... expensive than the common one. Some suppliers making outdoor spa use some common water pump, just for ... control system. Our control systems used in the longe outdoor spa, more than 5 meters long, are BALBOA ...