The Quick Recovery (QR) cylinder range comprises of high efficiency hot water storage solutions which can partner with all of Grant’s heat source appliances. All the QR cylinder models are suitable for use as unvented or open vented cylinders, and are designed to suit multiple installation scenarios. When homeowners choose a QR cylinder, they can be assured that their heating system is able to operate as efficiently as possible. *25 year material guarantee on cylinder shell (subject to full Terms and Conditions). Suitable for installation with oil boilers, air source heat pumps and solar thermal systems Feature factory-fitted 3kW immersion heater Manufactured using a high quality duplex stainless steel shell, large stainless steel internal coils, and quality external finish with organic Estectic Tex paint Highly efficient with large internal coils and supplied with high level of insulation to ensure low standing heat losses Grant 300L Quick Recovery Single Coil Cylinder