You simply won’t need to filter and top up the oil until you have run 20 or more batches

drilled and numbered for fast simple installation

It provides fast assembly and disassembly

When temperatures rise

Designed for either side of the greenhouse

DuraMax | Garden Bed - Rectangle Color:Gray with Black You simply won’t need toOVERVIEW The garden bed is made from UV protected PP plastic with simulated wood design. It is low maintenance, durable, weather resistant, and will not rot, crack or peel. You can stack another bed on top of each other to create a 20" high garden bed as well as connecting multiple beds together to make it truly expandable. The plastic sides of this raised garden bed absorb heat to warm soil early in the season, then help retain moisture all summer