Sun Blocker Foil Bubble -- 4' X 100' *DISCONTINUED*
This item has been discontinued We recommend the Thermal IR Blocker as a great alternative item. Sun Blockerâ„¢ is a barrier bubble film laminated between 2 layers of foil. Gardeners can better manage heating problems associated with indoor gardening with Sun Blockerâ„¢. Sun Blockerâ„¢ helps conserve energy, reflects up to 97% of all radiant heat and inhibits the growth of fungi or bacteria.