Consumer & Appliance O-Rings
Replacement seals for kitchen appliances, drinkware lids, CO₂ and keg systems, scuba regulators, and home repair — sizes, materials and kits.
Consumer and light-commercial equipment uses the same elastomer sealing principles as industrial systems, but buyers search by **product name** rather than dash number: pressure cooker lid seals, Instant Pot gasket O-rings, Hydro Flask lid seals, CO₂ tank O-rings, Cornelius keg posts, and scuba regulator face seals. This hub maps those search intents to the correct **material**, **size range**, and **replacement practice** so MRO buyers, repair shops, and OEM aftermarket programs can quote confidently. **Kitchen & cooking appliances** Electric pressure cookers (Instant Pot, Ninja Foodi, Crock-Pot Express) and stovetop pressure cookers use a large-diameter lid gasket — often a custom molded ring rather than a standard AS568 size — plus smaller O-rings on steam release valves, float valves, and anti-block shields. Search volume clusters on **pressure cooker o ring** and **instant pot o ring**. For steam-release and valve ports, metric sizes **8×1.5 mm**, **10×2 mm**, and **12×2 mm** in **VMQ silicone 70 Shore A** (FDA grade) are common. The main lid gasket is usually a proprietary profile; measure ID/CS or order by model number. Dishwashers and washing machines use **EPDM** or **NBR** on pump outlets, door boots, and hose connections — typically **12×2 mm** to **19×2.5 mm**. Blender and Ninja blender bases often seal the blade assembly with **VMQ 6×1.5 mm** to **10×2 mm** — food-contact silicone only. **Drinkware & portable bottles** **Hydro Flask**, **Thermos**, and generic **water bottle o ring** searches refer to lid and straw-cap seals. These are small **VMQ or EPDM** rings, commonly **6×1.5 mm**, **8×1.5 mm**, and **10×2 mm**. VMQ survives hot beverages; EPDM works for cold water if NSF/FDA grade. Avoid petroleum grease — use food-safe silicone grease only. **CO₂, kegs & beverage draft** **CO₂ o ring** and **kegerator o ring** / **Cornelius keg o ring** searches target pin-lock and ball-lock post seals, regulator inlet seals, and CO₂ cylinder valve O-rings. Use **NBR 70–90 Shore A** for CO₂ and beer-line hydrocarbon exposure — **not EPDM** on gas paths. Common post O-rings: **8×1.5 mm**, **9×1.5 mm**, **10×2 mm**. Cylinder valve seals vary by manufacturer — measure before ordering. **Scuba, paintball & sports** **Scuba o ring** and **diving o ring** refer to regulator first-stage, tank valve (DIN/Yoke), and high-pressure hose face seals — typically **NBR or FKM 70–90 Shore A** in **2.62 mm (0.103 in) CS** AS568 sizes **-011 through -016** and metric **8×1.5 mm** to **12×2 mm**. **Paintball o ring** searches map to similar small high-pressure NBR seals on tank valves and marker regulators. **Material quick reference** | Application | Material | Avoid | |-------------|----------|-------| | Pressure cooker steam valves | FDA VMQ | NBR on hot steam | | Drinkware lids | FDA VMQ, NSF EPDM | Petroleum grease | | CO₂ / keg / LPG paths | NBR, HNBR | EPDM (swells in hydrocarbons) | | Scuba / paintball HP | NBR 90A, FKM | Undersized generic hardware-store rings | | Dishwasher / laundry | EPDM, NBR | VMQ if exposed to detergents long-term | Related hubs: [faucet & plumbing](/applications/faucet-plumbing/), [propane & gas](/applications/propane-gas/), [garden hose](/applications/garden-hose/), [pool & spa](/applications/pool-spa/), [food & beverage processing](/applications/food-beverage-processing/). Materials: [VMQ silicone](/products/vmq/), [EPDM](/products/epdm/), [NBR](/products/nbr/), [FKM](/products/fkm/).
Application Requirements
Recommended Materials
VMQ (Silicone) 70 Shore A — FDA
Pressure cooker steam valves, blender seals, drinkware lids, baby bottle caps, hot-fill appliances.
Temp: −60°C to +200°C
Platinum-cured FDA VMQ for food and steam. Replace annually or when sticky/torn.
EPDM 70 Shore A — NSF-61
Dishwasher pump seals, washing machine hoses, cold water bottle lids, outdoor appliance gaskets.
Temp: −50°C to +150°C
Excellent water and detergent resistance. Not for CO₂, propane, or fuel paths.
NBR 70–90 Shore A
CO₂ regulators, Cornelius keg posts, paintball tank valves, low-pressure appliance hose ports.
Temp: −40°C to +120°C
Required for CO₂ and LPG compatibility. 90 Shore A for high-pressure face seals.
FKM 75 Shore A
Scuba regulator HP seats, aggressive cleaning chemicals on commercial kitchen equipment.
Temp: −20°C to +200°C
Premium option where heat and chemical resistance exceed NBR limits.
Design Tips
- 1.Measure the removed seal (ID, CS, and groove depth) — consumer products rarely publish AS568 dash numbers.
- 2.For Instant Pot and pressure cookers, distinguish the large lid gasket (custom profile) from small valve O-rings (metric VMQ).
- 3.Never reuse a seal that was pinched, cut, or permanently flattened — consumer appliances operate near safety limits.
- 4.Use food-safe silicone grease on VMQ and NSF EPDM; never petroleum jelly on EPDM drinkware seals.
- 5.CO₂ and keg post O-rings must be NBR or FKM — EPDM swells and can blow out under gas pressure.
- 6.Scuba and paintball HP seals require 90 Shore A minimum and exact CS — generic loose rings are a safety hazard.
- 7.Replace drinkware lid O-rings if the lid leaks or smells — odor retention indicates compound breakdown.
- 8.When the OEM sells only a full gasket kit, we can match small valve O-rings by dimension for partial repair.
Common Sizes
| Size | Typical Use |
|---|---|
| 6×1.5 mm / 8×1.5 mm VMQ | Water bottle, Thermos, and Hydro Flask lid seals |
| 8×1.5 mm – 12×2 mm VMQ | Pressure cooker / Instant Pot steam and float valve O-rings |
| 8×1.5 mm – 10×2 mm NBR 90A | CO₂ tank valve, Cornelius keg post, paintball regulator |
| AS568 -011 to -016 (1.78 mm CS) | Scuba regulator and HP hose face seals |
| 12×2 mm – 19×2.5 mm EPDM | Dishwasher, washing machine, and blender hose ports |
Recommended O-Ring Kits
Repair shops and ecommerce sellers stock one consumer kit instead of dozens of single-size bags — VMQ for food and steam, EPDM for water appliances, NBR for CO₂ and keg service.
Consumer & Appliance Kit
FDA VMQ, NSF EPDM and NBR 90A — metric 6×1.5 through 19×2.5 mm for cookers, bottles, CO₂, kegs and home appliances
Food & Beverage Kit (EPDM/VMQ)
270 pieces, 30 AS568 sizes — kitchen, dishwasher and potable-water appliance repairs
Frequently Asked Questions
What O-ring fits an Instant Pot or pressure cooker?
The main lid seal is usually a custom molded gasket sized to the model — order by Instant Pot, Ninja, or manufacturer part number when possible. Separate steam-release and float-valve O-rings are typically metric VMQ sizes 8×1.5 mm, 10×2 mm, or 12×2 mm. Measure the removed valve O-ring with calipers; do not assume the lid gasket and valve O-rings are the same size.
What material for Hydro Flask or water bottle lid O-rings?
FDA VMQ silicone 70 Shore A is the standard for hot and cold drinkware lids. EPDM NSF-61 works for cold-water-only bottles. Use food-safe silicone grease during installation. Common sizes are 6×1.5 mm, 8×1.5 mm, and 10×2 mm depending on lid design.
What O-ring for CO₂ tank or kegerator leaks?
Use NBR 70–90 Shore A for CO₂ cylinder valves, regulator inlets, and Cornelius ball-lock/pin-lock post seals. Typical post sizes are 8×1.5 mm, 9×1.5 mm, and 10×2 mm. Do not use EPDM on CO₂ paths — it swells in carbon dioxide and hydrocarbon exposure from beer lines.
Cornelius keg O-ring — which size?
Ball-lock and pin-lock keg posts commonly use 8×1.5 mm or 9×1.5 mm NBR 70 Shore A O-rings on the gas and liquid posts. Dip tube seals may use larger metric sizes. Replace all post O-rings when rebuilding a keg — gas and liquid posts use the same size on most Cornelius-style kegs.
Scuba regulator O-ring size?
First-stage and high-pressure hose face seals often match AS568 -011 through -016 (1.78 mm cross-section) or metric 8×1.5 mm to 12×2 mm NBR 90 Shore A. Tank valve O-rings (DIN/Yoke) vary by manufacturer. Always use scuba-rated compounds and exact CS — an oversized ring can cause catastrophic HP failure.
Paintball tank O-ring replacement?
Paintball CO₂ and HPA tank valve O-rings are typically 8×1.5 mm or 9×1.5 mm NBR 90 Shore A. Replace every time the tank is filled if the seal shows cuts or permanent set. Marker regulator seals may use the same sizes — measure before ordering.
Dishwasher or washing machine O-ring material?
EPDM 70 Shore A is preferred for pump and hose seals exposed to hot water and detergents. NBR works on lower-temperature drain paths. Common sizes range from 12×2 mm to 19×2.5 mm. Replace when you see slow leaks after a cycle or visible cracking on the seal.
Do you supply consumer and appliance O-ring kits?
Yes. Our Consumer & Appliance Kit bundles FDA VMQ, NSF EPDM, and NBR sizes for drinkware, kitchen valves, CO₂/keg posts, and small appliance ports. Custom kits for OEM aftermarket programs (specific blender, cooker, or dive brands) are available on request. MOQ from 1 kit.
Need consumer or appliance O-rings?
Send the product name, model number, or measured ID × CS. We match FDA VMQ, NSF EPDM, NBR and FKM with kits for repair shops. MOQ 1 piece.