50 * 50mm PVC Back Catalog number: 8644PVC-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644AL-100 100 * 100mm Aluminium coupon. 240grit (buff #4) Price on request 8700B-11 200mm Sieve. 180micron Price on request 8785B-75S Blue Scraper box of 100. Sterile Price on request