50 * 50mm Nylon (Polyamide) 6/6, FDA Grade, Back Catalog number: 8644N-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8644AL-50 Coupon 50 * 50mm Aluminium coupon. 240grit (buff Price on request 8700B-04 200mm Sieve. 850micron Price on request 8700B-20 200mm Sieve. 20micron Price on request