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SS Zerks
Groco suggests you can replace the drain plug for a SS zerk and grease the seacock plug.
My internet search has, at best, turned up 304 stainless instead of 316.
Grainger only has 440! Defender, Jamestown, West don't show anything in their on-line catalogs.
Any sources for 316 SS zerks? 1/8 - 27 NPT is the drain plug size on all Grocos.
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