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Product Description
These side mounted check valves (Left & righthand) are modeled accurately from original Nathan MFG blueprints in 1:32 scale. The attachment side has a 1/8" boss which you can machine, thread, or tap to suit your boiler jacket, or solder in as-is.
The inlet side has a cast-in starter hole (.055") which can be opened up to accept 2mm tubing or rod to solder in.