50 * 50mm HDPE Opaque Back Catalog number: 8644H-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700S-18 200mm Sieve. 32micron Price on request A135-100C Cover for PTFE Beaker Price on request A106-20 Micro Spatula. 316L stainless steel Price on request