Shop sequencing switches for hot tubs and spas from brands like PresAir and Techmark. Thousands of replacement electrical parts, hardware, fittings and accessories for your spa's electrical systems. Take advantage of FREE SHIPPING on orders to the lower 48 states on orders over $299. Need help finding the right parts for your hot tub? Our customer service team is here to help - just call 914-237-5606 to speak with a specialist.