D doingfine Well-Known Member Apr 3, 2011 #1 the cheap co2 testers that you can get online have lil test tubes does anyone know if those test tubes are a one time thing or if you can use them multiple times? the tubes are pretty expensive for one time use Attachments untitled.bmp untitled.bmp 18.8 KB · Views: 5
the cheap co2 testers that you can get online have lil test tubes does anyone know if those test tubes are a one time thing or if you can use them multiple times? the tubes are pretty expensive for one time use
F faithfulmastiff Active Member Apr 3, 2011 #2 can't see pic, & i think they cheap for a reason, i think they single use
