Les @HLG
Horticultural Lighting Group For Rep
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- Jun 12, 2021
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Mine is a custom stem called the Tectonic, with a "M" tip and a captive cap. The Tectonic has adjustable air ports.
It appears to be a DynaVap.
I measured one and it is:
3 5/8 x 3/8 "
And my guess is:
4.44g