Manifold sub-base VABV-S2-1HS-N38-T2 CE mark (see declaration of conformity)=to EU directive low-voltage devices, Corrosion resistance classification CRC=0 - No corrosion stress, Product weight=330 g, Pneumatic connection, port 2=NPT3/8-18, Pneumatic connection, port 4=NPT3/8-18