If you're shopping for a replacement gasket, the first question isn't brand or color-it's what you're sealing. A gasket for a military-style jerry can has to handle fuel, while a gasket for a Mirro pressure canner has to withstand steam and heat. These two replacements serve completely different jobs, and picking the wrong one means a leaky seal. A jerry can gasket has to survive fuel exposure and the pressure of a tight cap. A pressure canner gasket has to survive steam, heat, and repeated cooking cycles. The material and design choices reflect those different demands. Here's how they compare on price, material, and fit so you can pick the right part for your repair.
Quick Verdict
The Jerry Can Replacement Gasket 3-Pack is the easy choice if you own military-style fuel cans. It's built for fuel cans and priced at $9.99. The Replacement Gasket for Mirro Pressure Canner is the right pick if you're maintaining a Mirro pressure canner. It costs $17.89 and targets cooking equipment rather than fuel storage.
Comparison
| Product | Price | Material | Use For |
|---|---|---|---|
| Jerry Can Replacement Gasket (3-Pack) | $9.99 | Nitrile rubber | 5-gallon metal cans |
| Replacement Gasket for Mirro Pressure Canner | $17.89 | Food-grade silicone | Mirro pressure canners |
Where Each Product Wins
- The Jerry Can gasket wins on price and is made for the sealing job on military-style fuel cans.
- The Mirro gasket wins for pressure canning: it's designed for Mirro canners and made for the heat and steam of cooking. It also covers a range of Mirro canner sizes.
Product Notes
Jerry Can Replacement Gasket For 5 Gallon Military Cans 3 PACK

This set is built around a specific job: refreshing the seal on 5-gallon metal jerry cans that close with a screw-on cap. It's not for the spout, so keep that in mind before ordering. The nitrile rubber is gas and diesel friendly, which is exactly the environment a fuel can sits in. The gaskets are 1/8 inch thick, giving you a substantial seal that can handle repeated tightening. The set format is the standout reason to choose it: you can repair multiple cans or keep a spare on hand. The limitation is the narrow scope. If you need a seal for cooking, pressure canning, or any non-fuel container, this isn't the part.
Replacement Gasket for Mirro Pressure Canner, Compatible with 12/16/22QT Models

This replacement gasket is aimed at home canning and pressure cooking. It's compatible with Mirro pressure canner models in 12, 16, and 22 quart sizes, including M-0512, M-0522, M-0312, M-0406, M-0416, M-0526, and M-0622. Made from food-grade silicone, it's built to handle high cooking temperatures and hold a tight seal during pressure cooking. It comes in a matte black finish and measures about 12.6 inches in diameter. The food-safe silicone is the reason to choose it if you're servicing a Mirro canner. The limitation is that it won't help with jerry cans or other fuel containers. If you don't own a Mirro pressure canner, this gasket won't fit your cookware.
Final Choice by Use Case
For military-style cans with screw-on caps, go with the Jerry Can Replacement Gasket. For a Mirro pressure canner, go with the Replacement Gasket for Mirro Pressure Canner. Your equipment determines the right seal: one is for fuel storage, the other for cooking.