Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All Chromatography, Closures, ND 24 (EPA) Screw Thread Closuresblack screw polypropylene cap 15 mm centre hole 22 mm $13.50 Add to cart Chromatography, Closures, ND 24 (EPA) Screw Thread Closuresblack screw polypropylene cap closed-top 22 mm $13.50 Add to cart Chromatography, Closures, ND 18 Precision Screw Thread Closuresblue PTFE/white Silicone septa 18 mm magnetic precision screw-thread metal cap 8 mm centre hole $75.60 Add to cart Chromatography, Closures, ND 20 Crimp Top Thread Closurescrimp-top aluminum cap 10 mm centre hole 20 mm $8.10 Add to cart Chromatography, Closures, ND 20 Crimp Top Thread Closurescrimp-top blue magnetic aluminum cap 10 mm centre hole 20 mm $20.15 Add to cart Chromatography, Closures, ND 20 Crimp Top Thread Closuresnature PTFE/blue Silicone septa 20 mm crimp-top aluminum cap 10 mm centre hole $47.10 Add to cart Chromatography, Closures, ND 20 Crimp Top Thread Closuresnature PTFE/blue Silicone septa 20 mm crimp-top blue magnetic aluminum cap 10 mm centre hole $63.15 Add to cart Chromatography, Closures, ND 13 Screw Thread Closuresnature PTFE/nature Silicone septa 13 mm black screw polypropylene cap 8.5 mm centre hole $29.30 Add to cart Chromatography, Closures, ND 13 Screw Thread Closuresnature PTFE/nature Silicone septa 13 mm black screw polypropylene cap closed-top $29.30 Add to cart Chromatography, Closures, ND 20 Crimp Top Thread Closuresnature PTFE/nature Silicone septa 20 mm crimp-top aluminum cap 10 mm centre hole $47.10 Add to cart Chromatography, Closures, ND 20 Crimp Top Thread Closuresnature PTFE/nature Silicone septa 20 mm crimp-top blue magnetic aluminum cap 10 mm centre hole $63.15 Add to cart Chromatography, Closures, ND 24 (EPA) Screw Thread Closuresnature PTFE/nature Silicone septa 22×1.5 mm 22 mm black screw polypropylene cap closed-top $60.30 Add to cart 1 2 3 4 5