3/8"x3/8"ODF SGN10S SightGlass

1/2"x1/2"ODF SGN12S SightGlass

5/8"x5/8"ODF SGN16S SightGlass

7/8"x7/8"ODF SGN22S SightGlass

5/8"ODFx5/8"ODM Sight Glass

SGN 10 Sight Glass

SGN 12 Sight Glass

5/8"x5/8"Flare SGN16 Sightglas

SGN 6s Sight Glass