MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Materials: manifold, elbow, and outer chamber: 356-t6a (aluminum), inner chamber, outer diaphragm plate, intermediate housing, and air valve cap: al380dc (aluminumdie cast), inner diaphragm and hardware: plated steel, diaphragm rod: 416ss (stainless steel) , valve seat: stainless steel, diaphragm, flap valve, seal/manifold seal: nitrite, air valve: conductive hdpe.Shipping weight: 48.0 pounds.