This traditional 112mm half round guttering is made to BS4576 and compatible with most common gutter brands available in the marketplace. With a premium gloss colour finish to the outer skin and a white internal to minimise heat gain (and therefore expansion & deformation) it is the most popular choice of gutter in the UK. Specification: Width: 112mm Material: PVC coextrusion Manufacturers Guarantee: 10 (see documents for details). Fire Rated: Yes (see documents) Compatible with: Marley Flo Plast Marshall Tufflex Kayflow (Epwin) Aquaflow (Kalsi Plastics).