Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
total weight of 994 lbs
ready to build
Manual roof vent: Easily control humidity
Great for sealed environments
DuraMax customer service estimates that the average build time is 8-10 hours for 2 people
Alton | Bayliss XL Roof Vent Opener Piston Replacement eos total weight of 994 lbsThe 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