50 * 50mm PVC Back Catalog number: 8644PVC-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8500A-01 Superior case Price on request A135-10C Cover for PTFE Beaker Price on request 8644N-50 50 * 50mm Nylon (Polyamide) 6/6, FDA Grade, Price on request