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1-Inch vs 2-Inch Diverter Valves: What International Spa Owners Must Know
If you are outside the United States and replacing a diverter valve, cap, or handle, the most important thing to understand is this:
The “1-inch” and “2-inch” rating has NOTHING to do with the size of the cap you see on top of your spa.
It refers to the plumbing size that glues into the valve body.
This causes confusion worldwide.
Let’s clear it up properly.
What a Diverter Valve Actually Does
A diverter valve redirects water flow inside your hot tub.
It allows you
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Feb 11th 2026