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Fits two ways: slide the sleeve onto 15mm or 22mm pipe from an open end at first fix, or cut a length and wrap it around pipework that is already installed Ideal for tight spaces: the 50mm wool felt strip follows bends, elbows, valves and boxed-in runs where rigid foam pipe lagging is too bulky to fit 7.2m roll covers approximately 3m of pipe: a single continuous stitched sleeve of natural sheep wool that you simply cut to length with scissors Helps reduce pipes freezing: lag exposed runs in lofts, garages and outbuildings, and cut heat loss from hot water, central heating and condensate pipes Quietens noisy pipework: sheep wool absorbs the ticking and creaking of pipes as they expand, and reduces condensation forming on cold runs under sinks Natural sheep wool at 0.033 W/mK: naturally flame retardant, recyclable after use, and comfortable to handle with no glass fibres or loose mineral dust