Add to Cart Quick view Ibis Scientific 8mm Black Screw Cap, PTFE/Silicone, 100-pk MSRP: Now: $22.50 Was: Ibis Scientific polypropylene screw caps are a cost effective alternative with the same quality of major manufacturers. Product Size Pack of 100 Description PP, Black; Red PTFE/White Silicone... 4008-60A MSRP: Now: $22.50 Was: Add to Cart Quick view Qty in Cart: 0 Order Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $22.50 Was: Subtotal: Add to Cart