Autovent Cylinder Gardening Naturally Autovent garden trays 30"" x 30"" (76cm x

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

and grass cuttings

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

Avoid creating thick layers that prevent air circulation

Autovent Cylinder Gardening Naturally Autovent garden trays 30"" x 30"" (76cm xThis 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