1 x 50ml tube holder, pack of 2 Back Catalog number: R4040-500 Manufacturer: BENCHMARK SCIENTIFIC Availability: In the manufacturer's stock Price on request - + Recommended C-HEPUR Helium Gas Purifier, Big Universal Trap 1/8in fittings. Price on request WSL-LWTC4/150 Lázeň vodní s cirkulací LWTc 4/150, 12,0l, WSL Price on request B3D1020-E MiniMixer™ 3D Nutating Shaker, fixed speed 10"x7.5" platform, dimpled mat, 230V Price on request