This product is sold as Each. It is used in Pairs.
1-3/64" (1.047) eccentric offset
Allows an M76 Imperial Four to be installed on pipes as close together as 5-29/32 inches or as far apart as 10-3/32 inches.
Includes union O-ring seal and union washer
This appearance of this part is the result of the 3,000+ degrees F soldering process. It isn't "bad" and it isn't "used".
Follow the "Wall or Ledgeback Installation" section in these instructions. Use these K1037 wall unions in place of the K1034 wall unions in the instructions: