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 36610-23 SBH200D/3 Stuart Digital 3-Block Heater, 200°C; 230 VAC Price on request B1000-E BactiZapper™ Infrared MicroSterilizer, 230V Price on request DP0150-8 Horn, 8mm diameter, for 25-150ml, fits DP0150 Price on request