TC Sight GlassOur engineers have totally redesigned the 2" TC sight glass from the ground up! Standard sight glasses use 4 long bolts that need to be tightened in a criss cross pattern to get even pressure to avoid leaks. Our new design is made up of only 5 parts compared to 26 parts in a standard sight glass. No tools are required to assemble or disassemble; simply twist the knurled end cap off. The glass is also protected by the stainless guard which protects the