Vacuum manifolds constructed using 4 mm double oblique hollow high vacuum with greased stopcocks on all four ports.

Ports are fitted with two ¹⁴/₂₀ inner joints and two ²⁴/₄₀ inner joints and are spaced 5" center to center. This configuration permits use directly with vessels having these joint sizes. All four ends of the manifold have No. 15 O-ring joints permitting the trap assembly to be attached to either the right or left side of the vacuum bank.

Trap assembly is a rugged two piece design with 0 to 12 mm Chem-Vac™ Chem-Cap® valve as the shut off. Stopper and body connection is made via a 57 mm flat O-ring flange.