Whatman 1004-320 Filter Circles, 320mm Dia, Grade 4, 100/pk (PN:1004-320)
$161.24
400, 600 and 1000 watt SUPER high output HPS with maximized output in both red and blue spectral range. Runs on HPS Ballast. Optimized for maximum flower yield and added blue spectrum for vegetative growth efficiency. Outperforms standard HPS bulbs.
![[73011-10] 2-1/2](https://cdn.shopifycdn.net/s/files/1/0012/0350/3168/products/73011-10.jpg)
Harper Lee - 2024-03-03
Very impressed with the fast delivery and the quality of the product. The customer service was beyond my expectations. Highly recommend.