Hello we 'inherited' the above thru hulls fittings. And we can't find anything for them! 40mm / 1 1/2in , no probs. but next size up, NADA! We've taken the sea loo out and just need to block/cap the THFs until such time as we lift
out and block the holes completely. So we need a 45mm bronze
(or ss) female thread and similar male, to screw onto them. Cant even find this size on ebay!
thnx in advance