Vacuum 6 inch Conflat Manifold Nipple

Vacuum 6″ Conflat Manifold/Nipple –
Stainless Steel manifold with 6″ rotatable conflat flanges at each end. Also there are two (2) 2.75″ conflat half nipples welded near each end at right angles to the end flanges. Both 2.75″ Conflats are clocked the same on manifold tube. Main manifold tube is 4″ OD. This appears to be a custom built manifold, fabricated using Huntington Mechanical Labs conflat flanges.
***MPN
***OEM Brand Unmarked
***SKU*** 27724