Pressure Cooker Gasket Sizes: Which Replacement Fits?
By Prestige | Published: 2026-11-04
Category: 購入ガイド
Match your pressure cooker model to the right gasket size. Learn how to measure your old seal and pick the correct Prestige replacement.
Quick answer
The right replacement gasket depends on your exact Prestige pressure cooker model, not just the diameter. Check the model number stamped on the cooker base, then match it to a gasket listed for that model. If you cannot find the model number, measure the old gasket's inner diameter and compare it to the listed size.
Why model number beats diameter alone
Pressure cooker gaskets can look similar but differ in profile, thickness, and how they seat in the lid. A gasket that measures close to the right diameter may still leak if the cross-section does not match your lid groove. That is why Prestige lists compatibility by model number for each spare part. Always start with the model number rather than assuming a 20.7cm gasket fits every cooker with a similar lid size.
When measuring is your only option
If the model plate is worn or missing, measure the old gasket. Remove it from the lid, lay it flat, and measure the inside diameter across the center. Also note the thickness and shape of the sealing lip. Compare those measurements with the product listing. Keep in mind that a used gasket may be stretched or compressed, so a measurement within a millimeter or two is normal. If your measurement is between listed sizes, contact the seller with your cooker's details before ordering.
Common gasket questions answered
- How do I find my pressure cooker model number?
- Look on the base of the cooker, the side of the body, or under the lid. Prestige typically stamps a five-digit model number there. Write it down exactly and compare it to the compatibility list for each gasket.
- Can I use a 20.7cm gasket on any Prestige cooker?
- No. The 20.7cm gasket is made for specific models (47284, 47286, 47287, and 57050). Other models may use a different gasket profile even if the diameter seems close. Always check the model list.
- What is a TTK pressure cooker gasket?
- TTK is the product name Prestige uses for some replacement gaskets. The TTK gasket listed here fits model 57063. It is a genuine Prestige spare part, not a universal seal.
- How do I measure my old gasket if the model number is missing?
- Remove the gasket, lay it flat, and measure the inside diameter across the center. Also check the thickness and the shape of the sealing lip. Compare your numbers to the product details, and allow for slight stretching from use. If your measurement falls between listed sizes, ask the seller before ordering.
- How often should I replace a pressure cooker gasket?
- Replace the gasket when it becomes hard, cracked, or no longer seals steam properly. A gasket that has lost its flexibility can prevent the cooker from reaching pressure. Inspect it every few months, especially if you use the cooker often.
Prestige gasket options to compare
- Pressure Cooker Gasket 20.7cm: 20.7 cm diameter, compatible with Prestige models 47284, 47286, 47287, and 57050. This is the one to choose if your cooker model matches one of those four numbers.
Pressure Cooker Gasket 20.7cm - Pressure Cooker Gasket: Compatible exclusively with Prestige pressure cooker model 46770. A dedicated fit for that model means no guessing about profile or thickness.
Pressure Cooker Gasket - Pressure Spares TTK Pressure Cooker Gasket: Fits Prestige pressure cooker model 57063. If your cooker is a 57063, this is the correct replacement gasket.
