Hi. Thanks for the reply. The flange has a female 1 inche end to connect to the top male 1 inche at the top of the tank. the problem is, the flange runs out of thread before sealing to the top of the tank and leaks.
I have tried to fit a 1 inch female Danzey flange to top of my hot tank, but the tank has a male 1 inch bsp and is too long for the flange - is it adaptable? How?