50 * 50mm HDPE Opaque Back Catalog number: 8644H-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700B-07 200mm Sieve. 500micron Price on request SSS-888B Sterile Bag 254 * 382. Box of 1000 Price on request 8644S6-100S 100 * 100mm Stainless 316 240grit Price on request