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20-3//8 OD Vinyl Methyl Silicone 20 ID 70 Durometer Hardness Excellent Resistance to Oxygen Sur-Seal Inc. 20 ID 20-3//8 OD Pack of 1000 Pack of 1000 Ozone and Sunlight Sterling Seal ORSIL388x1000 Number 388 Standard Silicone O-Ring
20-3//8 OD Vinyl Methyl Silicone 20 ID 70 Durometer Hardness Excellent Resistance to Oxygen Sur-Seal Inc. 20 ID 20-3//8 OD Pack of 1000 Pack of 1000 Ozone and Sunlight Sterling Seal ORSIL388x1000 Number 388 Standard Silicone O-Ring

20-3/8 OD Vinyl Methyl Silicone 20 ID 70 Durometer Hardness Excellent Resistance to Oxygen Sur-Seal Inc. 20 ID 20-3/8 OD Pack of 1000 Pack of 1000 Ozone and Sunlight Sterling Seal ORSIL388x1000 Number 388 Standard Silicone O-Ring