These five gallon Stainless Steel Volumetric Provers are compliant with the guidelines laid down by the National Institute of Standards and Technology (NIST). Renowned for their accurate readings and reliable performance, these provers have a unique and well-planned design. The high-grade stainless steel body with superior finish does not require painting, is corrosion-resistant, shock-proof and offers excellent durability. These provers are extremely easy to operate. Other advantages of Enrique Freyre SAC’s hi-tech provers include an easily readable scale made of high quality material, with very good resolution and accuracy.