Like the 110mm downpipe, the 160mm system we offer doubles over from the soil pipe range, but with a couple of added fittings. We keep both black and grey, with good stocks of both. We have no guttering system to suit this system, as it is often used in conjunction with roof gulleys and preformed hoppers.
This system can be used internally, but we would also suggest you look at the acoustic system in the commercial solutions section. The system from Valsir is specifically designed for internal use and has the benefits of good noise reduction.
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