Half Round gutter identification

Look for a number stamped on the end cap of your guttering

It will be similar to the codes below:

(Not the "BS" code - that is the material standards)

Measure across the gap where the top of the gutter would be. If it is approx 4" you have standard size round guttering

112-114mm - 4 inch
Brand Code Style Identify by seals Other
Marley RCE1 Marley End cap example
The rubbers have 1 groove on them
OSMA 0T004 OSMA round endcap example
The rubbers have 4 grooves on them
PolyPipe RR104 Polypipe end cap example
The rubbers have 2 grooves on them
Terrain 2155.4 Polypipe Terrain End cap example
The rubbers have 3grooves on them
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Hepworth
Marshall Tufflex