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19" Suitable for filling from small vessels such as canisters or hobbocks. 27" suitable for emptying 30 Gal drums. 39" suitable for filling from 55 Gal drums. Suitable for pumping thin-bodied acids, alkalis, or chemicals. Infinitely variable speed controller allows a controlled filling of smaller and larger liquid amounts. The variable flow rate provides a more convenient and safe transfer. Lube free pump tube, thus no contamination of the liquid. Wide range of applications is made possible due to the seal less construction. Seal less construction cannot fail by dry running. HC shaft material. All-purpose resistant ETFE/PTFE shaft bearing. Service-friendly and simple to dismantle without a need for special tools. The B2 Vario offers a powerful Universal Motor with an improved service life.