Manufactured to the highest quality in the UK by the best manufacturing specialists. Supplied with a manufacturer�s backed 25 year cylinder warranty and 2 years parts warranty Diameter is 545mm from capacities 120L to300L Manufactured from high-grade Duplex Stainless Steel. Lightweight construction with high quality and 100% recyclable silver casing Supplied with 28mm coil connections and 22mm hot and cold water connections, including nuts and olives. Long-life 3kW Incoloy immersion heater supplied as standard Manufacturer Stock Code:ESHPD3300 Sub-Category:Indirect Brand:UK Cylinders Capacity:300 L Range:Elite Category:Cylinders NCB:Yes Type:ASHP