Automatic Vent Opener _40786HRDNON---DISCOUNT[true]--DISCOUNT[true] Easy Fleece Tunnels create warmth

Easy Fleece Tunnels create warmth and insulation while allowing air

(1) Roll 1" X 250' Flat tube Header/ Main Line

Refined 8" ears have 14 - 18 rows of bicolor kernels and good tip fill

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

Quickly check soil fertility

Automatic Vent Opener _40786HRDNON---DISCOUNT[true]--DISCOUNT[true] Easy Fleece Tunnels create warmthProtect 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.