The special magnetic film is simply placed on the gully and thanks to the adhesion, the drain is immediately and securely closed. Floating or washing away of the seal is almost impossible. MBS-FIRE.com is a brand of Markert Brandschutztechnik Schifferstadt, your competent partner for fire extinguishers, fire protection, occupational safety, security. Top prices guaranteed! Graduated prices and volume discounts! You only buy professional fire extinguishers from us, high-quality fire extinguishers, whether powder, foam, CO2 or grease fire extinguishers, which are approved according to " din EN 3" and are delivered with a valid factory test. In the case of commercial use, the prescribed test of the fire extinguisher takes place after 2 years at the earliest. Our fire extinguishers comply with.