Description
Product Overview
Rubberfeetwarehouse brings you a pack of two very large rubber grommets designed for demanding industrial and DIY applications. Each grommet measures a 3‑1/2″ inside diameter with a 3/16″ groove, allowing it to sit securely in a 4″ drill hole while also accommodating 3″ PVC pipe when needed. The round shape and solid black rubber material provide excellent resistance to abrasion, oil, heat, and chemicals, making these grommets suitable for a wide range of environments, from automotive firewalls to computer tower cases. The continuous grommet design eliminates the need for separate washers or seals, simplifying installation and reducing the total part count. With a total weight of just 8 ounces per pair, they are lightweight yet robust, offering a perfect balance of durability and ease of handling.
![[Product front view showing all components]](https://www.ilvinta.store/wp-content/uploads/2026/08/0b667ecd43ec46d3a3011aa7c406f44e.jpg)
Usage
These grommets excel in any scenario where a reliable seal and cable protection are required. Install them in sheet metal, plywood, drywall, or metal panels to protect wiring, speaker cables, fan blades, and PVC pipes from vibration and wear. They are ideal for automotive firewall applications, where they safeguard electrical harnesses from sharp edges and moisture. In home improvement projects, they provide a clean, professional finish for cable management in entertainment centers, office desks, and workshop benches. The 4″ hole compatibility means they can be used with standard drill sizes, and the 3‑1/2″ ID ensures a snug fit around larger cables or pipe sections, preventing movement that could lead to wear or short circuits.
Why Choose Us
Rubberfeetwarehouse is known for rigorous quality control and a commitment to delivering components that meet exacting standards. Each grommet undergoes a multi‑stage testing process to verify dimensional accuracy, material integrity, and performance under temperature extremes. Our continuous grommets are manufactured from premium-grade rubber that resists cracking and deformation, even after repeated compression cycles. By choosing our grommets, you benefit from a product that offers superior sealing, long‑term durability, and consistent performance across a variety of industrial and consumer applications. Additionally, our responsive customer support team is ready to assist with any installation questions or after‑sales concerns, ensuring you get the most out of your purchase.
Key Features
- Large 3‑1/2″ inside diameter provides ample space for thick cables and pipes.
- 3/16″ groove width ensures a tight, secure fit in 4″ drill holes.
- Durable black rubber resists oil, heat, and chemicals for long‑term use.
- Versatile application across automotive, electrical, and DIY projects.
- Dedicated customer support and hassle‑free returns for peace of mind.
FAQ
What material are these grommets made from?
They are constructed from high‑quality rubber that offers excellent resistance to abrasion, oil, heat, and chemicals.
Can these grommets fit PVC pipe?
Yes, the 3‑1/2″ inside diameter will also accommodate 3″ PVC pipes, making them versatile for plumbing and conduit work.
Do I need any additional hardware to install them?
No additional washers or seals are required; the continuous grommet design provides a complete sealing solution on its own.
Are these grommets suitable for outdoor use?
Absolutely. The rubber material is weather‑resistant and can handle exposure to sunlight, rain, and temperature fluctuations.
What is the warranty or return policy?
Rubberfeetwarehouse offers a 30‑day return window and a limited warranty against manufacturing defects.






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