Alton | Bayliss XL Roof Vent Opener Piston Replacement GARDEN CHAIR extend your growing season

extend your growing season

This Janssens Retro Royal Victorian VI 34 Glass Greenhouse Kit is beautifully crafted with classic English elegance

Capacity: 9 liters

with clear detailed step-by-step instructions and well-labelled parts

Alton | Bayliss XL Roof Vent Opener Piston Replacement GARDEN CHAIR extend your growing seasonThe 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