JBL Silicone Spray - an universal car spray for aquarium and garden pond equipment. Rubber seals and O-rings lose their suppleness in the course of time and with that their ability to seal something 100%. The elasticity can be regained with the help of silicone grease to ensure the sealing function or the flexibility, e.g. for the levering. It is not important to use a huge amount of silicone grease but it is important to lubricate all sides completely.JBL Silicone Spray+ cares for all movable parts and seals of technical articles in the aquarium and garden pond+ spray on moving parts, seals and O-rings+ water-neutral silicone grease spray+ water clear, odourless, long-term adhesion, CFC-free, free of oils and ecotoxic substances + contents: 1 pressurised gas cylinder with 400 ml content and spray head attachment for a precise, fine stream