A sand screen assembly including a base pipe, a filtration subassembly disposed about the base pipe, the filtration assembly being removable and replaceable on the base pipe as a subassembly, a hollow defined between the filtration subassembly and the base pipe, a removable and replaceable end cap securable to the base pipe with a fastener and configured to retain the filtration subassembly on the base pipe. A method for installing a tracer material in a sand screen assembly. A downhole system including a base pipe, a filtration subassembly disposed about the base pipe, the filtration assembly being removable and replaceable on the base pipe as a subassembly, a hollow defined between the filtration subassembly and the base pipe, a removable and replaceable end cap securable to the base pipe with a fastener and configured to retain the filtration subassembly on the base pipe.