Our site is crap to be honest and we are working on that at them moment. It should be much better in the next couple of months!
We have Berg Part numbers:
GB206NB
GB207NB-8
![](http://photos-h.ak.fbcdn.net/hphotos-ak-snc1/hs229.snc1/7629_182696576222_74197816222_4268226_5528193_n.jpg)
![](http://photos-a.ak.fbcdn.net/hphotos-ak-snc1/hs209.snc1/7629_182696591222_74197816222_4268228_7077090_n.jpg)
these both have the breather cap though so maybe not what your looking for?
Regards,
Rob.