Silicone O ring for 250ml MiniPot Back Catalog number: A426-250S Manufacturer: Sampling Systems Availability: In the manufacturer's stock Price on request - + Recommended A716-100 100mm Powder Funnel. 316Lss with 1.5" outlet Price on request A416-25 Stainless Container 20litre. 316L Price on request A426-500S Silicone O ring for 500ml MiniPot Price on request