100 * 100mm PTFE (Teflon) Back Catalog number: 8644T-100 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 8644PS-50 50 * 50mm PS Price on request A135-25C Cover for PTFE Beaker Price on request