I and a friend used Fram too and found them to be not as good. We opened one and found paper defects with a deterioration of the valve function.
This one was made for Yanmar engines and is constructed with high quality. I paid 6.50 each and purchased 10. Shop around with the sterns 120-137 Part Number
Here are the specs: https://www.stens.com/brands/Yanmar?keywords=120137 https://www.ebay.com/i/283442135128?chn=ps $5.59 each...LOL
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