PTFE Funnel Back Catalog number: A105-30 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended 8700S-10 200mm Sieve. 250micron Price on request 8644AL-100 100 * 100mm Aluminium coupon. 240grit (buff #4) Price on request 8700B-18 200mm Sieve. 32micron Price on request