PURE SUBSTRATES 6x6 All-In-One Grow Block - Buffered + Superwashed Quantity:Case (62 pcs) Heavy metal frames are zinc

Heavy metal frames are zinc plated and corrosion resistant

creamy formula produces an abundant lather in both hard and soft water

Each bottle marked with lot number and expiration date

This means you can ship or transplant the plugs earlier

PURE SUBSTRATES 6x6 All-In-One Grow Block - Buffered + Superwashed Quantity:Case (62 pcs) Heavy metal frames are zincPURE POWER MP (Medium Porosity) Max Air 6" Grow Block Clean. Consistent. Predictable results. Simply the best quality coco you will ever try. RHP Certified Designed and tested in Holland to the absolute highest horticultural standards on the planet, the substrate and the factory are RHP certified for premium quality. PURE Power MP (medium porosity) 6" blocks are produced with only the highest quality raw materials. We do not use the "waste" product of