Alpine Pure filter clear housing Made from NSF and FDA grade materials. Flat Cap. Suitable for benchtop filter or an under bench instalation. Max 125psi. These can be joined together with a 1/4" nipple and twin bracket to create a "twin" under bench unit. Suitable for all 10" X 2 1/2" Std size cartridges. Package includes a bracket, SS screws and a spanner. Installing this filter in sunlight is not recommended as Algae will grow inside the housing. Please note this filter does not include any cartridge