The Fittings | Plastic Keck Clamp (NS29/32) is a quick-connect clamp for NS29/32 ground glass joints on laboratory glassware used in distillation and extraction. Available in plastic (lightweight, chemical-resistant) or wire (high-strength) versions, Keck clamps provide a secure, tool-free connection that prevents joint separation during vacuum or pressure operations. Compatible with NS29/32 joints on VTA and UIC receiving flasks, feed tanks, and cold trap assemblies. Sold individually.