The Quark reaction head/vessel lid, model QRA-9-3, has seven (7) top ground joints: one (1) 55/50 center neck, four (4) 45/50 side necks, and two (2) 29/42 side necks. Conical in shape, the flange measures 300mm.

Condition: Excellent, previously-owned, used. Sold "as is" without warranty expressed or implied. Buyer is responsible for determining the suitability of this product for their application.