Brengun Models is a scale model and detailing parts manufacturer located in the Czech Republic. Their lines include limited production run multi-media kits and exquisitely detailed photo-etched, turned brass and white metal replacement parts for aircraft in the most commonly produced scales.
Brengun has produced a vac-formed canopy for their Hawker Tempest kit. My example kit (an Academy issue is a Mk V), and my research indicates it is the correct version that this particular part issue would be appropriate for.