Takagi AO Smith Tankless

[mrelmo]

I have this water heater AO Smith GT15-540NI, I flushed the tank, when I replaced the filter in the drain plug for some reason I lost the O-Ring and it drips so I shut down the heater until I get a new O-Ring. The manufactor says it is a P15 O-ring but I want to go to the local hardware store and get a replacement does anyone know what size O-ring I should get. thanks in advance

 

[Twowaxhack]

It’s metric. P15 is a metric o ring size

Japanese industrial standard AKA JIS.

I would advise you to find a hydraulic hose and fitting shop.

They will have it.

 

[mrelmo]

Great thank you