1.Wet-dial or Dry-dial 2.Single-jet 3.hot or cold water 4. Vacuum sealed register. The dial keep free form fog. The reading can be kept clear in longterm service. 5. Antimagnetic construction 6. Measuring accuracy is up to class B of ISO4064 Standard. 7. Selected high quality materials. Steady & reliable characteristics8. Series universal use. Easy interchange & maintenance Size: 13mm Material: brass Packing: carton