Bio Dome Refill Sponges

Bio Dome Refill Sponges

Plant a New Crop in Your Bio Dome with these Bio Sponges!


60-cell (Pack of 60)
Item # 96413-PK-60
Instock - allow 2-5 business days for processing prior to shipment.
$10.95
Buy 2+ at $9.47 ea
40-cell (Pack of 40)
Item # 96409-PK-40
Instock - allow 2-5 business days for processing prior to shipment.
$13.95
Buy 2+ at $12.47 ea
18-cell (Pack of 36)
Item # 09323-PK-36
Instock - allow 2-5 business days for processing prior to shipment.
$19.95
Buy 2+ at $17.95 ea
40-cell (Pack of 80)
Item # 96409-PK-80
Instock - allow 2-5 business days for processing prior to shipment.
Was :$24.95
SALE $21.20
Buy 2+ at Was :$22.95 ea
SALE $21.20 ea
60-cell (Pack of 120)
Item # 96413-PK-120
Instock - allow 2-5 business days for processing prior to shipment.
Was :$18.95
SALE $16.10
Buy 2+ at Was :$16.95 ea
SALE $16.10 ea

Your Bio Planting Block will last a lifetime with these handy, economical Bio Sponges! When you're ready to begin a new crop in the Planting Block, first be sure that the block has been thoroughly disinfected (warm water with a splash of bleach is fine). Then soak the Bio Sponges you intend to use in warm water for a few minutes. They expand, revealing the pre-drilled planting hole at one end. Simply slip one seed into the hole of each Bio Sponge, place the Sponge seed-side-up in the cell of the Planting Block, and you're on your way to another bumper crop of healthy, strong, super-quick seedlings!

Bio Sponges are now enriched with oilseed extract, giving your seedlings an extra boost of nutrition. You'll love the results!

3 different sizes available for replacement in the Original 60-Cell (sold in packs of 120), Jumbo 40-Cell (sold in packs of 80), and Whopper 18-Cell (sold in packs of 36) Bio Domes. Replacement Planting Blocks also available.

Product Videos