A hardened ring loses the lid seal
Over time the canner gasket hardens, cracks, and lets steam escape around the lid, so pressure cannot build. A fresh ring and vent plug restore a tight, safe seal.
- ▪ Hardened rubber. Old ring cracks and shrinks.
- ▪ Steam leak. Pressure escapes around the lid.
- ▪ No build-up. The canner cannot reach pressure.
- ▪ Worn plug. A tired vent fails to vent safely.
Re-seals the lid and renews the vent
The gasket ring seats in the lid groove to seal pressure, and the replacement vent plug sits in the safety opening for controlled release.
Closes the lid-to-pot pressure seam.
Renews the safety release opening.
Made to withstand canning temperatures.
Lift out the old parts, seat the new ones.
Heat-resistant rubber with firm profile
The ring is flexible heat-resistant rubber with a rounded profile, and the vent plug is molded to sit flush in the safety port.
- ▪ Flexible rubber. Seats into the lid groove.
- ▪ Heat resistant. Holds up to canning heat.
- ▪ Rounded profile. Compresses evenly around the rim.
- ▪ Molded plug. Fits the safety vent port.
Remove, seat, check, pressure test
Safe steps to replace the seal.
Take out the worn ring and plug.
Press it into the lid groove evenly.
Insert the replacement safety plug.
Run a water-only warm-up before canning.
General specs, check your canner
Typical values for a compatible seal set; verify your canner model, rim size, and vent port before ordering.
| Specification | Value |
|---|---|
| Product | Pressure Canner Gasket Ring and Vent Plug Set |
| Material | Heat-resistant rubber, molded plug |
| Includes | Sealing ring, vent plug, weight |
| Fit | 23qt aluminum canners; verify model |
| Use | Restore the lid pressure seal |
| Care | Rinse, dry, store cool |
| Warranty | 30-day replacement on defects |
Note: This is a compatible replacement, not a branded original. Verify your canner model and rim size before ordering; the canner itself is not included. Always follow safe canning procedures.
Fresh seal versus hardened ring
Same canner, two seal conditions. Here is how they line up.
| At a glance | This product | Hardened ring |
|---|---|---|
| Seal | Pressure tight | Steam leaks out |
| Pressure | Builds steadily | Will not hold |
| Vent | Renewed release | Worn and tired |
No surprises in the pack
You receive the ring, vent plug, and weight; the canner is not included.
| Specification | Value |
|---|---|
| Product | Canner Seal Set |
| Includes | Ring, vent plug, weight |
| Fit | Aluminum canners |
| Use | Lid seal replacement |
| Care | Dry and cool store |
| Warranty | 30-day defect replacement |
A gasket ring, vent plug, and weight to renew the lid seal.
Verify canner model and rim; canner sold separately.
Rinse, dry, and replace on schedule
Simple seal care keeps pressure consistent.
- ▪ Rinse after use. Wash off food residue.
- ▪ Dry fully. Never store a wet ring.
- ▪ Replace yearly. Swap when it hardens.
- ▪ Inspect ports. Keep the vent opening clear.
It is a compatible seal; verify your canner model, rim size, and vent port before ordering rather than relying on brand fit.
No. You receive the ring, plug, and weight; the canner is sold separately.
If it hardens, cracks, shrinks, or steam leaks around the lid, swap in a fresh seal ring.
Press it evenly into the lid groove, fit the vent plug, and run a water-only warm-up before canning.
Rinse, remove residue, air dry fully, and store away from heat.
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