Insulation wrap for 50mm or 60 mm air ducting air ducting insulation conserves air outlet temperature for optimal thermal performance and lowest fuel consumption from your heater. Benefits hydrophobic Actually repels water, thus preventing mould & mildew hypoallergenic Easy to handle can double the effective heat output from air heaters by minimising ducting heat loss allows long ducting runs to provide effective heat output reduces heater running times, improving fuel and electrical power consumption reduces external duct temperature from circ. 100 To 30 c use with eberspacher, webasto and also propex and chinese heaters. Length 750mm apk ducting shown for illustration purpose only Not included one size fits 50mm to 60mm ducting specification and application: suitable for 50 60Mm internal diameter ducting press stud fastenings for easy in-situ installation initial or aftermarket diy installation temperature resistant up to 140 c Brand: Eberspacher