Hayward Pool ProductsFAQ client

Union nut fitting issues with your H150 could arise due to a few reasons. The most common one is that your nut might have worn out because pool products can deteriorate over time with constant exposure to pool chemicals and water. Another possible reason could be that the nut threads aren't compatible with your H150 heater part. It is also possible that the union nut is not the correct size. Always ensure that you're using a Hayward-specific part, as a custom or general part may not work with specialized equipment. Always go for the correct and genuine Hayward replacement parts for optimal performance.