Caps are used to cover RH sleeves. The caps come with a rubber O-ring to seal opening of sleeve completely.
Blue color is used when the sleeves have no RH probe inside. Red color marks the sleeves with RH probes. The design of the caps is identical, only the color differs. All sleeves sold by Lignomat come with blue caps.
For more information please contact Customer Service at 1-800-227-2105.
Lignomat USA Ltd, 14345 NE Morris Ct., Portland OR 97230, USA,
Email: sales@Lignomat.com, www.Ligno