| WAFIX HT PP soil and waste fittings (fitting group 1, 2 and 3) - godkj. 2019 | Product certification | pdf | 06.04.2022 | Download |
| Godkjennelse - No. 2059 - Wafix PP avløpsrør | Product certification | pdf | 28.10.2020 | Download |
| LCA Wafix PP | Product certification | pdf | 28.10.2020 | Download |
| WAFIX HT PP soil and waste pipes, godkj. 2017 | Product certification | pdf | 28.02.2021 | Download |
| WAFIX HT PP soil and waste fittings (group 1, 2 and 3) - godkj. 2018 | Product certification | pdf | 28.07.2020 | Download |
| POLYPROPYLENE (PP) PIPE SYSTEM FOR SOIL AND WASTE REMOVAL IN THE BUILDING | Product certification | pdf | 28.10.2020 | Download |