The unique design and robust construction of the G2 Heat Exchanger offers an unrivalled heat transfer surface area, making it one of the most efficient products on the market. Features & Benefits Four models ranging from 30-kW to 122-kW Titanium tube bundle BS 316L Stainless Steel primary casing Salt and sea water compatible 4 bar pressure tolerance Low pressure drop With optional Smart Touchscreen Controller and Booster Pump Temperature and flow sensor port Floor and wall mountable Flow Tube Primary Circuit: BS 316L stainless steel tube Secondary Circuit: Bundle of 37 titanium tubes Water Connections Primary Circuit: 1″ BSP male fittings Secondary Circuit: 1½” / 50mm stepped ABS unions for rigid pipe connection Working Pressure Primary Circuit: 4 bar maximum Secondary Circuit: 4 bar maximum