Similar to 9844-07 Vessel except jacketed to provide active cooling from tap water or mechanical cooler. Jacket is cylindrical with flat bottom for greater stability. With #25 Ace-Thred center neck and two 14/20 side necks. Code -30 includes our 7506-10 #25 Ace-Thred bushing used to secure a 9852-41 slide adapter (not included). 10ml to 50ml capacity with hose connections for 3/8in ID tubing.