TSB44 is made of 100% post-consumer plastics.
PolyGrate is made of 100% post-consumer plastic that is lightweight yet durable. Compared to iron grates, this makes PolyGrate easier to install, maintain, and is a third of the cost. The expansion process is also a key factor that is not possible with iron tree grates; simply cut PolyGrate tree grates to fit around growing tree trunks rather than purchasing a larger grate.
*Optional Frame not included.