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Luer plugs are essential components for sealing luer connections in various applications, from medical devices to laboratory equipment. Ensuring a secure and leak-proof seal prevents contamination and maintains system integrity. Selecting the appropriate plug is crucial for safety, efficiency, and the accuracy of your procedures.
These small red luer lock caps feature a unique dual-function design, integrating both male and female luer lock compatibility. This versatile solution ensures a secure fit and reliable performance across a wide range of luer lock connector types and...
Manufactured from high-quality ABS material, these caps are built for durability and long-term use. The robust construction ensures resistance to impact and wear, providing a secure seal and dependable performance in various environments.
Engineered to withstand internal pressure, these luer lock caps provide a strong, leak-proof seal for liquid handling applications. The secure twist-lock mechanism prevents accidental disconnections, ensuring system integrity.
Featuring a user-friendly, plug-and-play design, these caps allow for simple, tool-free installation and removal from connectors. This ensures quick and hassle-free operation in any setting.
The vibrant red color allows for easy identification and inventory management. Packaged as a convenient 50-piece set, this bulk offering provides exceptional cost-effectiveness for laboratories, pet care, and industrial uses
Sufficient Quantity: You will receive 100 pieces of Luer replacement caps. Adequate stock ensures spare caps are always on hand. Featuring plug-and-play design, they can be quickly attached without any tools.
Dual-Function Luer Connector Caps: Our dual male-female cap design forms liquid and airtight seals to stop liquid evaporation and glue drying. Both ends of the dual male-female Luer stopper are connectable. Bottles fit the male end, while dispensing tips...
Reliable Material: Made of PE, each Luer cone stopper is individually packaged. It can withstand internal pressure up to 300 kPa without leakage, offering strong sealing performance for liquid applications. Safe and sturdy.
Universal Size: These connector caps measure about 0.79 x 0.39 x 0.39 inches / 20 x 10 x 10 mm, compatible with most standard Luer connectors.
Secure Sealing for Connectors: Specially designed for standard male and female Luer connectors, the twist structure delivers firm connection to prevent accidental disconnection and create secure, leak-proof seals. It effectively protects connectors from...
✅ [FEATURES] The luer plug and luer fittings are made of polypropylene (PP) with excellent mechanical strength and good chemical compatibility. Female and male luer fittings
✅ [CONNECTORS] Luer Fitting: Male Luer Lock, Female Luer Lock; Female Luer Plug, Male Luer Plug
✅ [APPLICATIONS] Cobetter fittings and connectors are used for connection or disconnection of fluid paths in biopharma and gene and cell therapy manufacturing processes, laboratory bottle assemblies
✅ [QUALITY] Conform to ISO 9001:2015 Quality management system. The fittings are manufactured in the ISO Class 7 clean zones
✅ [REGULATORY COMPLIANCE] All materials comply with USP Class VI standards. The fittings do not contain animal derived components and are free from TSE risk
Polycarbonate PC, is strong, wear-resistant, durable, and can be used for a long time
Features: The inverted hook is designed with pagoda shaped slot, anti-skid and non-toxic, good air tightness, and good adsorption performance
Note: Nonsterile, widely used in laboratory biochemical / inspection and analysis instruments, food machinery, aquarium equipment, massage equipment, spray painting, and other lines
✅ [FEATURES] The luer plug and luer fittings are made of polypropylene (PP) with excellent mechanical strength and good chemical compatibility. Female and male luer fittings
✅ [CONNECTORS] Luer Fitting: Male Luer Lock, Female Luer Lock; Female Luer Plug, Male Luer Plug
✅ [APPLICATIONS] Cobetter fittings and connectors are used for connection or disconnection of fluid paths in biopharma and gene and cell therapy manufacturing processes, laboratory bottle assemblies
✅ [QUALITY] Conform to ISO 9001:2015 Quality management system. The fittings are manufactured in the ISO Class 7 clean zones
✅ [REGULATORY COMPLIANCE] All materials comply with USP Class VI standards. The fittings do not contain animal derived components and are free from TSE risk
INDIVIDUALLY BLISTER PACKED: Each male luer lock cap is sealed in its own individual blister package, ensuring maximum pristine cleanliness and dust-free protection until the exact moment of use. Perfect for high-precision laboratory workflows and...
SECURE FIT FOR FEMALE LUER PORTS: Specifically engineered with standard male luer lock threading to form an absolute, leak-proof seal with female luer interfaces, fluidic manifolds, and standard 3-way stopcocks. (Note: This is a MALE cap designed to plug...
HIGH-PURITY POLYPROPYLENE MATERIAL: Manufactured from premium, chemical-inert, and non-reactive polypropylene (PP). These heavy-duty plug caps offer exceptional structural resilience against corrosive reagents, volatile solvents, and biochemical fluids...
THERMAL STABILITY & PRESSURE RATED: Designed to maintain strict dimensional stability under continuous thermal loads up to 120°C (248°F). Optimized for reliable system containment with a maximum operational pressure rating of $le 300 ext{ kPa}$ (3 bar...
100-COUNT HIGH-EFFICIENCY SUPPLY: Supplied in a commercial bulk pack of 100 individually sealed pieces per box. Minimizes laboratory waste by allowing technicians to open only the exact quantity needed, making it an essential consumable for...
Complete 126-Piece Assorted Connector Set: This comprehensive kit includes 20 connector types—female–male adapters, straight couplings, tees, plugs, caps, hose barbs, and threaded fittings—providing everything needed to build precise small-scale...
Multi-Standard Interfaces for Versatile Use: Equipped with universal Luer-compatible ends plus G1/8 and M6 threaded adapters, ensuring easy integration with pumps, tubing, custom-built devices, bench setups, and classroom demonstrations.
Ideal for STEM Education, Engineering & Research: Designed for hands-on learning and experimental work in engineering courses, fluid mechanics demonstrations, prototype development, lab exercises, and general-purpose research environments.
Durable, Chemically Inert Materials: Made from food-grade PP and PE, offering excellent resistance to common laboratory liquids, low reactivity, and long-term durability. Smooth surfaces and tight tolerances ensure clean, secure, leak-resistant...
Organized Storage Case for Easy Access: Includes a transparent storage box with individual compartments for quick identification and efficient workflow—perfect for classrooms, shared labs, mobile projects, and organized bench setups.
Polycarbonate PC, strong, wear-resistant, durable, can be used for a long time
Features: The inverted hook is designed with pagoda shaped slot, anti-skid and non-toxic, good air tightness and good adsorption performance
Note: Non sterile, widely used in laboratory biochemical / inspection and analysis instruments, food machinery, aquarium equipment, massage equipment, spray printing and other lines
✅ [FEATURES] The luer plug and luer fittings are made of polypropylene (PP) with excellent mechanical strength and good chemical compatibility. Female and male luer fittings
✅ [CONNECTORS] Luer Fitting: Male Luer Lock, Female Luer Lock; Female Luer Plug, Male Luer Plug
✅ [APPLICATIONS] Cobetter fittings and connectors are used for connection or disconnection of fluid paths in biopharma and gene and cell therapy manufacturing processes, laboratory bottle assemblies
✅ [QUALITY] Conform to ISO 9001:2015 Quality management system. The fittings are manufactured in the ISO Class 7 clean zones
✅ [REGULATORY COMPLIANCE] All materials comply with USP Class VI standards. The fittings do not contain animal derived components and are free from TSE risk
Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Luer Plugs
Material Compatibility
Luer plugs are commonly made from materials like polypropylene (PP), polyethylene (PE), and rubber. Polypropylene offers good chemical resistance and is often used for general laboratory purposes. Polyethylene is more flexible and cost-effective, suitable for less demanding applications. Rubber or silicone plugs provide excellent sealing but may have compatibility issues with certain chemicals or sterilization methods. Always check the material's resistance to the specific fluids or gases you will be using.
Frequently Asked Questions
What is a Luer plug used for?
A Luer plug is designed to seal off the open end of a Luer fitting, preventing leakage of fluids or gases. They are commonly used in medical devices, syringes, and laboratory tubing to ensure sterility and maintain system pressure.
What are the different types of Luer connections?
The two primary types are Luer-Lok and Luer-Slip. Luer-Lok fittings have a threaded collar that locks onto the corresponding fitting, providing a more secure connection. Luer-Slip fittings rely on friction for their connection, making them easier to attach and detach but less secure.
Can Luer plugs be reused?
The reusability of Luer plugs depends on their material, intended use, and sterilization. Single-use plugs are designed for one application to maintain sterility and prevent contamination. Reusable plugs, often made of more durable materials, can be sterilized and reused if properly cleaned and inspected for wear.
What size Luer plug do I need?
Luer fittings come in standard sizes, typically referred to by gauge or connection type. Ensure you match the plug size to your existing Luer fitting. Most plugs are designed to fit standard male or female Luer connectors found on tubing, syringes, and other equipment.
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