. The Pisa Black provides a mixture of contemporary style with high heat output practicality. A range of width sizes are available when wall space is limited. The 25mm diameter of the bar is directly linked to heat output so the larger the bar the higher the holding capacity of the towel rail giving greater heat output. Features . H800 x W400 x D47mmHigh heat output acheived by using 25mm bars.Can be used on central heating or Dual Fuel systems.Wide range of sizes to cater for all spaces.An even higher heat output can be acheived via painted or powder coated models.Steel radiator finished in epoxy powder coating Black.Supplied with all fixtures and fittings.All components use British standard fittings.Tested to BS EN 442 standards.Suitable for any central heating systemsSafety tested at 13 bar pressure. Normal household pressure is well under 5 bar.Maximum working temperature of 110C.Valves not includedWarranty - 10 Years. .