Viega Advantix 4935.1 Instructions For Use Manual page 15

Accessories for the bonded sealing
Odour barrier
Advantix bathroom drain
If a bonded sealing is to be applied, a suitable stacking element with
sealing collar is required.
You will find a corresponding set in the catalogue (model 4925).
Advantix drains can be equipped with an additional odour barrier, which
also closes the drain odour-tight, if the water seal in the odour trap has
evaporated. Odour nuisance is even avoided with drains that are only
seldom used. Odour barriers can be found in the catalogue.
Product information
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