Features We adopt the British thread and the technology is simple and elegant. It also has good elasticity, can be used in various occasions. The reverse side is flat and smooth, parallel to the contact area. The flange has a high corrosion resistance ability and can withstand high pressure. We drill 4 holes and there are fine words engraved on the surface. Specification: Type: transverse Connection mode: screw Special function; corrosion resistance, high pressure resistance, good elasticity. Diameter: 79 mm UK Specification: 3/4" Specification of metrics: DN20 Small Hole Pitch: 6MM The distance between holes: 34 Size: 8 x 8 x 1 cm/3.15 x 3.15 x 0.39 inches. Package list: 10* Flange Note: 1. As different computers display colours differently, the colour of the actual item may vary slightly from the above images. 2. Please allow for a 1 - 3 mm margin of error due to manual measurement. Package List