Videos
Information on the Stop Silent® SL13 backflow flap
Stop Silent® backflow protection - The simple protection against backflows
SL Backwater flap Youtube Lasso Video SL13 french
Stop Silent® backflow protection - The simple protection against backflows
How the Stop Silent SL13 (ex Light) backflow flap works Animation
Stop Silent SL13 (ex. Light) - Wastewater non-return valve
Backflow prevention: Electrical backflow flap defective - LassoTechnik AG
Is your sous-sol inondé? Clapet anti retour pour eaux usées ou de pluie - Stop Silent SL13
The "Stop Silent SL13" backflow preventer - flushing
The Stop Silent SL13 (ex. Light) backflow flap - installed in no time at all!
Stop Silent SL13 - How To Install Backflow Check Valve
Stop Silent SL13 (ex. Light) - Clapet anti-retour installé en temps record !
Backwater Flap Valve: How To Install Backwater Flap Easily & Fast - Stop Silent SL13 (ex. Light)
Stop Silent SL13 (ex. Light) - backflow preventer (quick and easy installation)
Stop Silent non-return valve, Gallislochquelle Oltingen - Lasso Technik AG
Mounting in oval tube
Information on the Stop Silent® type AS backflow preventers
Stop Silent non-return valve - Replacing the rubber diaphragm
