EPDM O-rings
EPDM O-Rings
Shop EPDM O-rings for water, outdoor, plumbing, washdown, weather-exposed, and general replacement jobs. Choose the exact size by inside diameter and cross section, then select the hardness you need.
Typical temperature-55 to +120 °CTypical for the family; the supplied compound decides the usable range.
Good for
- Hot water, steam and glycol coolants
- Glycol brake fluid and many phosphate ester fluids
- Ozone, UV and weathering
Avoid / check
- Any mineral oil, fuel or petroleum grease
- Hydrocarbon solvents
- Food or drinking water: needs a documented compound
- Listings
- 6,100
- Priced
- per pack
- Units
- mm + in
Most-used sizes
- 6 × 1.50 mm
- 8 × 2.00 mm
- 10 × 2.00 mm
- 12 × 2.00 mm
- 14 × 2.00 mm
- 15 × 2.00 mm
- -010 6.07 × 1.78
- -012 9.25 × 1.78
- -014 12.42 × 1.78
- -016 15.60 × 1.78
- -018 18.77 × 1.78
- -020 21.95 × 1.78
| Size (ID × CS) | Hardness | Size ref. | Smallest pack | Status | Action |
|---|---|---|---|---|---|
| 97.00 × 4.00 mm3.819 × 0.157 in | 70A EPDM | — | $32.94 / 10 pcs $3.29 / pc | Available to order | |
| 94.00 × 3.00 mm3.701 × 0.118 in | 70A EPDM | — | $7.38 / 10 pcs $0.74 / pc | Available to order | |
| 91.44 × 5.33 mm3.600 × 0.210 in | 70A EPDM | AS568-342 | $10.70 / 10 pcs $1.07 / pc | Available to order | |
| 25.00 × 1.50 mm0.984 × 0.059 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 24.80 × 1.50 mm0.976 × 0.059 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 24.00 × 8.00 mm0.945 × 0.315 in | 70A EPDM | — | $7.99 / 10 pcs $0.80 / pc | Available to order | |
| 23.50 × 1.50 mm0.925 × 0.059 in | 70A EPDM | — | $9.34 / 10 pcs $0.93 / pc | Available to order | |
| 20.00 × 5.00 mm0.787 × 0.197 in | 70A EPDM | JIS B 2401 GM020 | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 20.00 × 4.50 mm0.787 × 0.177 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 20.00 × 2.42 mm0.787 × 0.095 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 19.80 × 2.40 mm0.780 × 0.094 in | 70A EPDM | JIS B 2401 P20 | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 18.00 × 1.80 mm0.709 × 0.071 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 15.54 × 2.62 mm0.612 × 0.103 in | 70A EPDM | AS568-114 | $36.22 / 10 pcs $3.62 / pc | Available to order | |
| 15.50 × 3.00 mm0.610 × 0.118 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 14.60 × 2.40 mm0.575 × 0.094 in | 70A EPDM | — | $50.93 / 10 pcs $5.09 / pc | Available to order | |
| 13.80 × 2.40 mm0.543 × 0.094 in | 70A EPDM | JIS B 2401 P14 | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 12.00 × 1.50 mm0.472 × 0.059 in | 70A EPDM | JIS B 2401 S12.5 | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 10.00 × 2.20 mm0.394 × 0.087 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 8.00 × 1.24 mm0.315 × 0.049 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 6.00 × 2.00 mm0.236 × 0.079 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 3.45 × 2.02 mm0.136 × 0.080 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 3.40 × 1.90 mm0.134 × 0.075 in | 70A EPDM | — | $4.99 / 10 pcs $0.50 / pc | Available to order | |
| 1002.00 × 7.00 mm39.449 × 0.276 in | 70A EPDM | — | $684.86 / 10 pcs $68.49 / pc | Available to order | |
| 1001.00 × 7.00 mm39.409 × 0.276 in | 70A EPDM | — | $684.86 / 10 pcs $68.49 / pc | Available to order | |
| 1000.00 × 7.00 mm39.370 × 0.276 in | 70A EPDM | — | $683.26 / 10 pcs $68.33 / pc | Available to order | |
| 999.00 × 7.00 mm39.331 × 0.276 in | 70A EPDM | — | $683.26 / 10 pcs $68.33 / pc | Available to order | |
| 998.00 × 7.00 mm39.291 × 0.276 in | 70A EPDM | — | $681.67 / 10 pcs $68.17 / pc | Available to order | |
| 997.00 × 7.00 mm39.252 × 0.276 in | 70A EPDM | — | $681.67 / 10 pcs $68.17 / pc | Available to order | |
| 996.00 × 7.00 mm39.213 × 0.276 in | 70A EPDM | — | $683.66 / 10 pcs $68.37 / pc | Available to order | |
| 967.00 × 7.00 mm38.071 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 966.00 × 7.00 mm38.031 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 965.00 × 7.00 mm37.992 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 964.00 × 7.00 mm37.953 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 963.00 × 7.00 mm37.913 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 962.00 × 7.00 mm37.874 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 961.00 × 7.00 mm37.835 × 0.276 in | 70A EPDM | — | $199.64 / 10 pcs $19.96 / pc | Available to order | |
| 925.00 × 7.00 mm36.417 × 0.276 in | 70A EPDM | — | $360.12 / 10 pcs $36.01 / pc | Available to order | |
| 924.00 × 7.00 mm36.378 × 0.276 in | 70A EPDM | — | $360.12 / 10 pcs $36.01 / pc | Available to order | |
| 923.00 × 7.00 mm36.339 × 0.276 in | 70A EPDM | — | $359.33 / 10 pcs $35.93 / pc | Available to order | |
| 922.00 × 7.00 mm36.299 × 0.276 in | 70A EPDM | — | $359.33 / 10 pcs $35.93 / pc | Available to order | |
| 921.00 × 7.00 mm36.260 × 0.276 in | 70A EPDM | — | $358.52 / 10 pcs $35.85 / pc | Available to order | |
| 920.00 × 7.00 mm36.220 × 0.276 in | 70A EPDM | — | $358.52 / 10 pcs $35.85 / pc | Available to order | |
| 919.00 × 7.00 mm36.181 × 0.276 in | 70A EPDM | — | $357.72 / 10 pcs $35.77 / pc | Available to order | |
| 911.00 × 10.00 mm35.866 × 0.394 in | 70A EPDM | — | $446.47 / 10 pcs $44.65 / pc | Available to order | |
| 910.00 × 10.00 mm35.827 × 0.394 in | 70A EPDM | — | $446.47 / 10 pcs $44.65 / pc | Available to order | |
| 909.00 × 10.00 mm35.787 × 0.394 in | 70A EPDM | — | $445.69 / 10 pcs $44.57 / pc | Available to order | |
| 908.00 × 10.00 mm35.748 × 0.394 in | 70A EPDM | — | $445.69 / 10 pcs $44.57 / pc | Available to order | |
| 907.00 × 10.00 mm35.709 × 0.394 in | 70A EPDM | — | $444.91 / 10 pcs $44.49 / pc | Available to order |
Can’t find your size, material or quantity? Send the dimensions, an old part or a drawing.Request a quote
Ordering EPDM O-rings
Listed sizes can be ordered in small packs when offered. Need a different size, special hardness, drawing, or larger quantity? Use the Custom O-Ring Quote. For oil- or fuel-related service, review FKM O-Rings instead.
Browse EPDM 70A sizes by inside diameter: 0–40 mm, 40–80 mm, 80–180 mm, 180–350 mm, and 350+ mm.
EPDM is commonly considered for water, weather, ozone, outdoor exposure, and selected steam or washdown service, depending on compound and conditions. It is generally not the first choice for petroleum oils and fuels; compare NBR or FKM for those applications.
Confirm the exact fluid, concentration, temperature, pressure, cleaning chemicals, and motion before choosing a grade. For dynamic seals, also check lubrication, surface finish, and groove design, because material family alone does not guarantee service life.
About EPDM O-rings
EPDM, short for ethylene propylene diene, is the water-and-weather family: water, steam, glycol and outdoor service. It is usually the first family to check for hot water and steam, glycol coolants and brake fluid, and for seals exposed to ozone, UV and weather. The firm rule is to keep it away from mineral oil, fuel and petroleum grease, including assembly lubricants.
Where EPDM is a good starting point
EPDM is a good starting point for hot water, steam and glycol coolants, for glycol brake fluid and many phosphate ester fluids, and for outdoor exposure to ozone, UV and weathering. It is common in water and cooling circuits, brake-fluid systems and outdoor equipment, wherever petroleum products stay out of contact with the seal.
When to consider another material
- Mineral oil, fuel or petroleum grease: consider NBR or FKM. NBR is the general-purpose family for mineral oils, hydraulic fluids and greases, and FKM takes over when those fluids run hot.
- Hydrocarbon solvents in the medium: consider FKM. FKM is a good starting point for many acids and aromatic or chlorinated solvents; screen the exact solvent in the chemical check.
EPDM O-ring questions
- What temperature range does EPDM cover?
- As a family, EPDM is typically used from −55 to +120 °C (−67 to +248 °F). The usable limits depend on the compound and on how long the seal stays at temperature, so check the compound before running near either end of the range.
- Which hardness should I choose?
- This collection carries EPDM in 70/80 Shore A. 70 Shore A is the usual general-purpose starting point; harder grades resist extrusion better at higher pressure or larger clearances. Engineer Pro checks compression, stretch and extrusion for your gland.
- How do I check EPDM against my fluid?
- Look up your exact medium in the chemical compatibility check, which rates EPDM against about two thousand media. The rating is a screening step; for critical service, confirm the specific compound.