I don't know other item.
I speak about
SKU 1700500
and
SKU 1904601
they have similar refill screws, but in my model, the original refill screw of
SKU 1700500 will lock on half screwing, instead, with refill screw of orchid goes well.
the o-rings of refill screw are identical, that of
SKU 1700500 is very poor, very thin, very small.
finally, after #24 msg in a ticket, FT has decided of sell this important, rightsized, replacement part.
the head of screw is 4.6mm, diameter 2.3mm
they could work very fine.
thanks justina ;)
I love watching my pipe after a puff, when the haze comes out from atom's airhole, it looks like really a smoking gun...