Discover the Marco Advantage

Marco Rubber & Plastics Experienced Team and Integrated Systems Deliver Value

Need Parts Fast?
  • O-Rings and Seals on demand
  • Same day shipping from huge inventory network
  • Rapid prototyping and emergency production
  • Experienced responsive service

Request a Quote

Response in minutes or hours depending on complexity.

Need Parts Fast?
Live Personalized Customer Service and Compliance
  • 14,000+ repeat worldwide customers

Personalized value added services and industry-wide customer audited quality compliance delivered by our experienced owner operated team and advanced business continuity technology resulting in faster responses with consistent on time delivery of quality product.

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World's Largest Inventory and Production Network
  • 1,000,000,000+ O-Ring and Seal inventory network of 300,000+ unique Items
  • Advanced integration throughout the worldwide supply market
  • Vast network of redundant contract manufactures
  • One stop resource for all things O-Rings and Seals

Request a Quote

Response in minutes or hours depending on complexity.

Application Specific Performance Products
  • 3000+ and growing specialized materials deliver performance advantages
  • Cheap seals can be costly, when it matters consult our experts
  • Cost effective materials with increased temperature, chemical and sealing performances
  • Non-standard sizes often without tooling or set up fees

Tech References

Engineering Support and Technical Reference Guides
  • Expert engineering selection and design support
  • Quick reference material comparisons and design guides
  • Reverse engineering and design review services
  • Experienced team dedicated to deliver value

Tech References


Product inspection services, specialty cleaning, PTFE and other coatings, customized packaging, kitting, private label, vendor integrated inventory management. Standardized and industry specific quality compliance, traceability and certification documentation, FDA, NSF, USP, QPL, 3A, UL, PPAP.


Most Popular O-Ring Size, Design, Material and Technical References

O-Ring Reference Guide Index

Optimized Engineering Infographic

Specialty performance products are quoted, manufactured and delivered with specialty requirements
faster than other suppliers respond to inquiries and often at a lower price than their standard products.

Need line down O-Rings or troubleshooting help fast, we're on it.
Engineering product and design service, technical support.
Open to cost effective specialty performance O-Rings, we explain it.
Advanced Product Selection Guides and O-Ring Quote-Order App.
We are not catalog order takers, we are expert specialists.
Worldwide Integrated O-Ring Inventory Network, real-time access.
Want low cost commodity O-Rings for disposable use, we stock it.
OEM brand specific O-Rings like Kalrez or Parker, we supply it.



Worldwide Reach - Personalized Service

Worldwide Reach

Owner Operated Since 1980

Overhead View of Marco Rubber

Our History

Marco Rubber and Plastics has supplied rubber and plastic components like O-Rings and Gaskets around the world since 1980 to a wide range of markets including Semiconductor, Military, Petro-Chemical and various industrial markets.  MARCO, originally  Marine and Aerospace Rubber Company, was initially a traditional distributor representing major brands like Parker Hannifin. The big brand service levels eventually became counterproductive so we began our journey to independence in the early 1990’s. Ever since we have been developing a network of partners with unique capabilities that allow us to provide a multitude of products, materials, and situational capabilities to ensure our customers receive the best product and service options available. This network has allowed us to craft our own line of Marco branded materials which utilize the same raw polymers and contract manufacturers as the big brands, but without the overhead and complications that result in high prices in lead times. Our Markez® line of FFKM Perfluoroelastomer compounds offers an alternative to Kalrez® with identical performance at a fraction of the cost. Marco branded product lines are managed by industry experts many with big brand experience who are directly responsible for the design, manufacturing, quality and service. Marco will also supply Kalrez®, Parker Seal, and other big brand products when appropriate. We operate from a 37,000SF warehouse and manufacturing facility 30 minutes north of Boston filled with one of the world’s largest inventories of sealing components. Our integration with top tier contract manufacturers and suppliers allows us to deliver product faster than it takes others to quote.

Our Present and Future

We appreciate the opportunity to become your new favorite supplier. Our goal is to differentiate ourselves by providing additional value with responsive service, a huge inventory network of quality products, and expert engineering support. Marco leverages cutting edge technology to maximize productivity and uncover competitive price advantages. In addition, we continue to develop market leading online reference tools and documentation. Our expanding web presence allows us to offer discounts for ordering online for a growing percentage of our product line. We offer also offer blanketing and kanban stocking programs to prevent stock out situations and minimize product cost while reducing management workload and thus hidden overhead costs. Our technology tools allow us to integrate with customer systems to semi or fully automate business transactions and further reduce hidden costs. We deliver a competitive advantage for sustainable mutual success.  We look forward to the opportunity to show you why new customers often say: "I wish I found you sooner!"



For those who are interested in even more details

Performance Driven Customers Value Sourcing from the Sealing and O-Ring Specialist

New Customer Hotline: 800-775-6525

Existing Customer Specialist: 603-468-3600 or repeat customers

Marco Rubber & Plastics
PO Box 1150
Seabrook, NH 03874

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