Trevoli – H Series – Spa / Bathtub Heaters   DESCRIPTION The Trevoli H Series Spa / Bathtub Heater range are designed for continuous flow with minimal pressure loss, designed to suit a large range of Spa pool sizes and applications. Comes with an adjustable thermostat 0-45 degrees C, overheating limit of 60 degrees C and a flow switch. … Continue reading Trevoli – H Series – Spa / Bathtub Heaters