50 * 50mm PTFE (Teflon) Back Catalog number: 8644T-50 Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended A135-600 PTFE Beaker Price on request 8700B-08 200mm Sieve. 425micron Price on request 8644AL-50 Coupon 50 * 50mm Aluminium coupon. 240grit (buff Price on request