Automatic Vent Opener _40786HRDNON---DISCOUNT[true]--DISCOUNT[true] Quickly check soil fertility

Quickly check soil fertility

as well as cooked

Easy Fleece Tunnels create warmth and insulation while allowing air

Hybrids are faster than Orientals but typically take a bit longer than the L

Drip irrigation emitters can be placed along your mainline tubing by punching directly into the mainline tubing

Automatic Vent Opener _40786HRDNON---DISCOUNT[true]--DISCOUNT[true] Quickly check soil fertilityProtect your greenhouse, cold frames and tunnels from overheating! This automatic vent opener is a great way to insure your plants do not over heat in you greenhouse or cold frame. Easily attaches to greenhouse vents and cold frames to automatically open when it gets to warm inside. The opener operates automatically and can be adjusted to open at temperatures between 60 77 F. No batteries or electricity needed.