Polypipe 112mm black square rain water guttering including a square gutter, union bracket, 90 degree gutter angle, 135 degree gutter angle, running outlet, stop end, fascia bracket, top rafter bracket, downpipe and a downpipe connector. Also available is a downpipe bracket, 112.5 degree downpipe bend, downpipe shoe, 112.5 degree downpipe branch, downpipe adaptor and a 92.5 degree offset downpipe bend.