Quote:
Originally Posted by Hacksaw
Never read any info about PAC springs by Book but I have used them for a while in my SS cast iron stuff. Smaller od with same pressure as "big springs". The advantage is that the spring pocket is smaller and further away from the water.
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Exactly! Number 1356, 1.5" dia, over 1000lbs open pressure. Last longer than anything I have ever used. Run them all year, and they still check too good to throw away. Have boxes of them here. LOL