Here is a cutup of a SuperTech (Walmart) ST9688 oil filter! I'm impressed with what $3 will buy and hope you are too.

Yes I realize that Walmart contracts out the design and manufacture of these filters.

Efficiency: 99% @ 30 microns per ISO 4548-12

Product page: https://www.walmart.com/ip/SuperTech-...

Info from Walmart webpage:
"SuperTech quality oil filters are made alongside the world’s leading private label and original equipment manufacturer’s filters. This ensures the most stringent quality requirements are met for maximum protection on today’s demanding engines. SuperTech filters not only meet, but normally exceed original equipment requirements for fit, function and total replacement value. Manufacturer’s warranties remain in effect when SuperTech filters are used. - High performance media for more dirt-holding capacity and 99% filtering efficiency- SuperTech filter media is engineered with a variety of natural and synthetic fibers for optimum efficiency and capacity to reduce flow restriction- High structural strength allows the SuperTech filter to withstand the harsh conditions of a 10,000 mile service interval- High-strength center tube provides superior filter strength and integrity and ensures proper oil flow"

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0:00 - Intro
0:25 - Price
1:27 - Packaging
1:48 - Case
3:06 - Weight
3:31 - Baseplate and gasket
6:27 - Anti-drainback valve
6:40 - Inlet holes / center hole
8:19 - Cartridge assembly
8:44 - Center tube
9:58 - Endcaps
11:55 - Filter media / efficiency
13:50 - Mileage guarantee
16:02 - Spring & pressure relief valve
17:13 - Conclusions

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#oilfilter