I replaced mine a few years ago and went with Northstar AGMs (Group 31). These were highly rated then by several reviews.
They claim to be made from 'virgin' (as opposed to recycled) lead, are ~ $350 each and weigh at least 70 lbs. The ones I got previously from Sams club (AGM--forgot the 'brand' name) lasted just beyond the end of their free replacement warranty period! FWIW Charlie Nelson Water Phantom 1995 C&C 36 XL/kcb cenel...@aol.com
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