Designed for compatible Vego Pacific and Victorian greenhouses

and 10x20 ft (M36) are the standard sizes

and creating a dedicated garden feature that blends naturally into the landscape

Vego Pacific Greenhouse 10ft 6in x 16ft 6in Installation Manual

better penetration

Alton | Bayliss XL Roof Vent Opener Piston Replacement Electric Heater Designed for compatible Vego PacificThe Bayliss XL Piston or Power Tube is a direct replacement component designed specifically for the Bayliss XL Automatic Greenhouse Vent Opener. If your current unit is no longer responding as it should, replacing the power tube is a simple and cost effective way to restore smooth, temperature driven vent operation. This tube contains a heat sensitive wax core that expands as temperatures rise and contracts as they fall, driving the piston that opens