Home > Products > Lawn & Garden > Indoor Growing > Hydroponics > TNB Naturals Refill Pack Natural Co2 Generator TNB Naturals Refill Pack Natural Co2 Generator Log in to see availability and pricing. Item Number: TNB002 Case Qty: 20 Min Qty: 20 UPC: 696859915208 Manufacturer: TNB Naturals Inc. MSRP:$19.99 Product Description Product Availability TNB Naturals The Enhancer CO2 Generator240g Refill PackThe CO2 Refill Pack gives growers the ability to reuse their existing Enhancer bottle while saving money and reducing their environmental footprint at the same time. Simply empty the contents of the original bottle and give the bottle a quick rinse. The contents of the Refill Pack can be added and instantly CO2 is once again available for use. Log in for warehouse specific availability. You may also be interested in... MSRP: $27.49 DNC 15# Water Only Living Soil Potting Mix (50/PL) Item #: DNCWTR27016Mfg #: DNC/WTR-27016 Min Qty: 1 Click here for pricing and availability. PVP Perlite Coarse 4 Cubic Feet (36/Pallet) Item #: PVP105408Mfg #: 105408 Min Qty: 1 Click here for pricing and availability. MSRP: $22.99 Wiggle Worm 30lbs Soil Builder Worm Castings 75/Pl Item #: UII604Mfg #: 604 Min Qty: 1 Click here for pricing and availability. PVP Vermiculite Coarse 4 Cubic Feet (36/Pallet) Item #: PVPVCH/4/EAMfg #: VCH/4/EA Min Qty: 1 Click here for pricing and availability. MSRP: $9.59 Dalen 7'x10' Pond Netting 3/8" Mesh Item #: DALPN10Mfg #: PN-10 Min Qty: 18 Click here for pricing and availability.