Aquascape Black Silicone Sealant effectively seals joints where the liner attaches to filters, such as the BioFalls® filter snouts and skimmer faceplates. Properly sealing water feature filters is crucial for preventing expensive leaks. This fish-safe silicone is black and user-friendly. It's designed specifically for water feature filters like BioFalls® filter snouts and skimmer faceplates. Its black color blends seamlessly with your water feature design while ensuring a durable, leak-proof seal. With Aquascape Black Silicone Sealant, you can trust that your water feature will stay in top condition for years to come.