Default sortingSort by popularitySort by latestSort by price: low to highSort by price: high to low View:1224AllChromatography, Closures, ND 13 Screw Thread Closuresnature PTFE/nature Silicone septa 13 mm black screw polypropylene cap 8.5 mm centre hole $29.30Add to cartChromatography, Closures, ND 13 Screw Thread Closuresnature PTFE/nature Silicone septa 13 mm black screw polypropylene cap closed-top $29.30Add to cartChromatography, Closures, ND 13 Screw Thread Closurespre-slit white PTFE/red Silicone septa 13 mm black screw polypropylene cap 8.5 mm centre hole $31.15Add to cartChromatography, Closures, ND 13 Screw Thread Closuresred PTFE/white Silicone /red PTFE septa 13 mm black screw polypropylene cap 8.5 mm centre hole $35.65Add to cartChromatography, Closures, ND 13 Screw Thread Closuresred PTFE/white Silicone septa 13 mm black screw polypropylene cap 8.5 mm centre hole $29.30Add to cartChromatography, Closures, ND 13 Screw Thread Closureswhite PTFE/red Silicone septa 13 mm black screw polypropylene cap 8.5 mm centre hole $29.30Add to cart