Mainstem Products
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Hanna HI12943 Soil pH Electrode | Conic Tip, Refillable
Vendor:Hanna InstrumentsRegular price $226.32 USDRegular priceUnit price per$226.32 USDSale price $226.32 USD -
GrowoniX EX1000-T Deluxe Reverse Osmosis System with UV, Pump + Solenoid Valve 2000GPD
Vendor:GrowoniXRegular price $2,394.00 USDRegular priceUnit price per -
Growers Choice DE 600W MH 4K Grow Lamp | 800 µmol/s | 4000K Transitional
Vendor:Growers ChoiceRegular price $95.20 USDRegular priceUnit price per -
Growers Choice DE 600W HPS 2K Grow Lamp | 1050 µmol/s | 2000K Bloom
Vendor:Growers ChoiceRegular price $79.28 USDRegular priceUnit price per -
Grower's Edge Green Trellis Netting Bulk Roll | 6.5 ft x 3,300 ft
Vendor:Growers EdgeRegular price $459.99 USDRegular priceUnit price per -
Grodan Stone Wool Gro-Slabs Expert Slab 20/75 8 inch x 3 inch x 36 inch (case of 12)
Vendor:GrodanRegular price $120.65 USDRegular priceUnit price per -
Grower's Edge Soft Mesh Trellis Netting 5 ft x 15 ft w/ 3.5 in Squares
Vendor:Growers EdgeRegular price $11.77 USDRegular priceUnit price per -
Gro1 Extraction Bag Kit (set of 8) - 32 Gallon
Vendor:Gro1Regular price $207.35 USDRegular priceUnit price per -
Grodan Par22.5 Jumbo Block 6 in x 6 in x 4 in w/ Hole (Pallet of 704 loose blocks)
Vendor:GrodanRegular price $1,301.44 USDRegular priceUnit price per$1,301.44 USDSale price $1,301.44 USD -
Gro1 Extraction Bag Kit (set of 8) - 10 Gallon
Vendor:Gro1Regular price $108.95 USDRegular priceUnit price per -
Gro1 Extraction Bag Kit (set of 5) - 10 Gallon
Vendor:Gro1Regular price $73.95 USDRegular priceUnit price per -
Grodan Gro-Block Improved GR10, Tall (White Foil), 4 x 4 x 4, 1584 Blocks Loose on Pallet
Vendor:GrodanRegular price $1,175.25 USDRegular priceUnit price per -
Gro1 5 Gallon Extraction Bag Kit (set of 3)
Vendor:Gro1Regular price $29.91 USDRegular priceUnit price per -
GreenGro Biologicals Granular Plus Mycorrhizae | Kelp, Humic & Bacillus Blend
Vendor:GreenGro BiologicalsRegular price From $22.22 USDRegular priceUnit price perGreenGro Biologicals Granular Plus Mycorrhizae | Kelp, Humic & Bacillus Blend
Regular price From $22.22 USDRegular priceUnit price perGreenGro Biologicals Granular Plus Mycorrhizae | Kelp, Humic & Bacillus Blend
Regular price From $22.22 USDRegular priceUnit price per -
GreenGro Biologicals Rose & Flower Fertilizer
Vendor:GreenGro BiologicalsRegular price From $16.75 USDRegular priceUnit price perGreenGro Biologicals Rose & Flower Fertilizer
Regular price From $16.75 USDRegular priceUnit price perGreenGro Biologicals Rose & Flower Fertilizer
Regular price From $16.75 USDRegular priceUnit price per -
AC Infinity Garden Plant Stakes, 5 Feet Long, 25-Pack
Vendor:AC InfinityRegular price $59.99 USDRegular priceUnit price per$59.99 USDSale price $59.99 USD
