A Year ago, based on Peggie's recommendation, I got the Whale valve. To me, it
looks well made. It's too soon to tell whether it functions well or holds up.
The Guzzler (Bosworth) valve is junk.

Ytter wrote:

Which one is better the product that would last longer and do the proper
job? My ITT Jabsco last only five years and plastic around the spring broke.
Thank You
Ytter