CP (compact) II and PH II two different toilets
The Raritan CP II--and btw, West Marine isn't the only source for it--is a compact "light duty" toilet for small boats and light weekend use. The Raritan PH II is a sturdy "heavy duty" toilet that'll last live-aboards 20 years with minimal maintenance...the PHC is the same pump, but on the CP II base--to fit in tighter space. You can see the specs, dimensions for both toilets on the Raritan website http://www.raritaneng.com/No...the mounting bolt patterns for either one are not likely to match a Jabsco.