A 136 does not reference anything regarding our WGP pumps; it is most likely a raw material designation or something along those lines. We would need to know which pump you own. On the side of the pump, it will clearly state model name, and model number. Each pump has its own impeller, and they are all available on our site, other than the WGP 1200 or HCP3600.
Date published: 2016-06-08