Product review (5 stars): It worked
My existing valve started to leak and corosoned slowly withing 5 years. So I got this one and replaced it with an ease. Mine is Aprilair humidifier. The fittings fit well with existing piping etc. I tested out raising humidity to 100%(maximum) as it is summer time and there is no need to naturally run humidifier. The valve opens up and closes. Thats about all I could test but I will be able to test it for extended time in 3 months (fall/winter is coming).
I received the product at discount or free.