Seward Stomacher® 400 ECO bags are designed specifically for the Stomacher 400 EVO, and as well as saving money, Seward ECO bags use up to 40% less plastic sothey're also much more environmentally-friendly than any other blender bag. The Seward Stomacher 400 EVO can be used with all standard bags, and significant cost savings can be made to your laboratory by using our new and unique Stomacher 400 ECO bags. Choose from two Stomacher 400 bag sizes specifically suited to performing sample preparation methods for 25g Pathogen tests and 10g TVC tests. Less cost. Less wastage. Greater value for your Lab. Suitable for the Seward Stomacher 400 EVO only.