Man Ship Port Light Gaskets?

[jviss]

I have ten of these rectangular Man Ship LS-series stainless port lights. At least one need a new gasket, maybe more.

Looking, I find the gasket material is in the neighborhood of $5.50 per foot! I've found some similar stuff for about 1/2 that price, but it's not exactly the same.

Any have these, too, and replaced the gaskets? What did you use?

OEM stuff: (I need the LS, 7122)

https://whitewatermh.com/product/man-ship-replacement-gaskets-portlights/

Close, but not exact:
http://www.downwindmarine.com/Portlight-Gasket-Seal-Hollow-Black-Rubber-p-90891254.html

Thanks,

jv

 

[ggrizzard]

Why not a match?

New gaskets look odd when compared to the old ones due to
'compression memory' in the old ones.

 

[jviss]

The less expensive ones are 3/8" square, the OEM is 3/8 wide x 7/16" high.