SitaDSS Indra retaining element, made of polyamide, to DIN EN 1253-2, for SitaDSS Indra siphonic drainage rainwater outlets for emergency drainage, for retaining heights of 25 mm – 105 mm, 85 mm – 150 mm or 135 mm – 200 mm, with multi-lip angled sealing ring to seal the retaining element against the roof outlet. With three infinitely height-adjustable rubber-metal buffers, installation area per foot: 19.6 cm², with galvanised threaded rod M8 x 90 mm, M8 x 140 mm, M8 x 190 mm with bolted sealed cover which can be removed for inspection, housing with 51 surrounding ribs, in yellow signal colour. Retaining heights are infinitely adjustable, with large inlet pot to increase discharge capacity, supply and install to professional standards.