Hello group,

I’m contemplating buying an Andair 25-20 duplex valve from a guy.  I was going to use the 20-20 which has 3/8ths supply and return.

The 25-20 has ½ supply and 3/8 return.  Any problem using this valve with the ½ in fittings (reduced of course) with my 3/8 in. supply line?

Thanks,

Bryan

Renesis