4 ms·That plastic dish (parabolic reflector) is not cheap.by thatsadude 2y agoThat plastic dish (parabolic reflector) is not cheap.Boltgolt 2y agoIt would be, if it wasn't just a "plastic bird-feeder cover" as the article suggestsjojobas 2y agoThey link to Amazon and it's whopping $8.99.