Synthware Vacuum Manifold 4 Port 2 mm PTFE Stopcocks with Top Outer 14/20 Joint

Synthware SYNM490042 4-Port Vacuum Manifold. This single-bank laboratory glass manifold is engineered to distribute vacuum or an inert shielding gas (such as nitrogen or argon) simultaneously across multiple experimental vessels while maintaining a strict moisture- and air-free environment. The inclusion of a centralized standard taper joint on the main beam provides a dedicated access point for a rubber septum, allowing researchers to purge and store syringes under an inert atmosphere without sacrificing an active delivery port.

• MPN / Catalog Model: M490042 (often cataloged by distributors as SYNM490042).
• Manufacturer & Line: Synthware™ (manufactured by Kemtech America).
• Quantity & Packaging / Form Factor: Single unit, 4-port single-bank linear configuration. The main manifold tube has a 22 mm outer diameter (O.D.), with delivery ports spaced evenly at 75 mm center-to-center. Both ends of the main tube feature 10 mm O.D. serrated hose connections for a left-right flow configuration.
• Material Construction / Metallurgy: Constructed from low-expansion, chemical-resistant borosilicate glass to withstand high vacuum stresses and extreme temperature variations. Features 2 mm bore straight-through PTFE (Teflon) stopcocks, which require no lubricating grease, preventing sample contamination and seizing.
• Technical Specifications & Tolerances: Equipped with four independently controlled delivery ports terminating in 10 mm serrated hose connections. Incorporates a top-mounted 14/20 outer Standard Taper (ST) joint on the main beam. Designed to handle medium-to-high vacuum conditions and chemically aggressive solvent vapors.
• Hardware & System Compatibility: Interfaces seamlessly with standard 10 mm (approx. 3/8") internal diameter thick-walled vacuum tubing or inert gas lines. The top 14/20 outer joint accepts standard 14/20 inner joint glass stoppers, vacuum adapters, or standard rubber septa.
• Standards, Cleanliness & Purity: The borosilicate glass meets standard laboratory glassware material requirements for inertness and thermal resilience. The PTFE stopcocks are inherently chemically inert and provide grease-free, high-purity gas and vacuum routing.
• Primary Application: Air-sensitive organic and inorganic synthesis (Schlenk line techniques), simultaneous vacuum drying, solvent evaporation, and inert gas purging. The top joint is specifically optimized for storing or purging syringe needles under an inert gas blanket prior to transferring highly reactive reagents.

used; in excellent condition with no wear or damage to glassware or hose barbs