Extra lower level ventilation designed to increase air movement inside your greenhouse. Add as many as you need to promote healthy and vigorous growth.
The Hartley Range of Colors
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- Hypca White
- Country Stone
- Verona Stone
- Umbria Light
- The Olive Leaf
- Mist
- Vista Grey
- Iron Grey
- Forest Green
- Bronze
- Manganese Graphite
- Black Olive
- Dark Bronze
- Black
- Ruby Red
