The valve assembly is good but there are not enough sealing rings and there is only one washer. When the bulkhead is drilled to the recommended size, the o-ring will deform as it is forced halfway into the cavity between the valve threads and the edge of the bulkhead. I ended up buying a 1/8" thick silicone sheet and cutting my own flat gaskets. I also had to buy a 3/4" 304ss washer to match the one they sent so that there was even pressure on the gasket. This valve was reasonably priced, but when I add in the cost of replacement parts, it's not great.
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