![Need hot water heater help!!) Can I replace a pressure relief valve that has a 3” extension with one that has a 2” extension? The old one is on the right : r/Plumbing Need hot water heater help!!) Can I replace a pressure relief valve that has a 3” extension with one that has a 2” extension? The old one is on the right : r/Plumbing](https://i.redd.it/4dp949fb9oc81.jpg)
Need hot water heater help!!) Can I replace a pressure relief valve that has a 3” extension with one that has a 2” extension? The old one is on the right : r/Plumbing
![plumbing - How do I remove this fitting on water heater T&P relief valve? - Home Improvement Stack Exchange plumbing - How do I remove this fitting on water heater T&P relief valve? - Home Improvement Stack Exchange](https://i.stack.imgur.com/mux5u.jpg)
plumbing - How do I remove this fitting on water heater T&P relief valve? - Home Improvement Stack Exchange
![Amazon.com: ST-4 Safety Pop Off Valve - Pressure Relief Valve 250 PSI, 1/2" NPT, Replace for #131081 3559097 3403479 Safety Valve : Industrial & Scientific Amazon.com: ST-4 Safety Pop Off Valve - Pressure Relief Valve 250 PSI, 1/2" NPT, Replace for #131081 3559097 3403479 Safety Valve : Industrial & Scientific](https://m.media-amazon.com/images/I/614jiIi3bzL.jpg)