Autovent Cylinder Gardening Naturally Autovent garden trays As the water butt is

As the water butt is wall mounted this means it can be fixed to any height

30"" x 30"" (76cm x 76cm)

Avoid creating thick layers that prevent air circulation

Standard - Internal - 19¾ inches x 19¾ inches x 9½ inch high (50cm x 50cm x 24cm) / External 23 inches x 23 inches (59cm x 59cm) - large enough to accept two standard size seed trays

Click Here to see instructions for assembling this Arch

Autovent Cylinder Gardening Naturally Autovent garden trays As the water butt isThis cylinder is a replacement part for the internal mechanism of Gardening Naturally automatic greenhouse window openers. It is designed exclusively to fit Gardening Naturally autovent systems and is not suitable for use with other brands or models. The cylinder is supplied with a two year warranty. Specifications Finish: Black Cylinder length: 20 cm Measurements Total length when closed: 28. 5 cm Total length when fully extended: 33 cm Technical