BVV 120LB Diptube Tank Propane R290 | 99.5% High Purity, USA Synthetic Complete Nutrient Internally there are three canisters:

Internally there are three canisters: one KDF and catalytic carbon pre-filter

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BVV 120LB Diptube Tank Propane R290 | 99.5% High Purity, USA Synthetic Complete Nutrient Internally there are three canisters:What the BVV 120lb Propane Tank Actually Holds Worth clearing up first, because the searches say people confuse the two. The 120 lb in the name is a pound class, not a gallon count, so this is nowhere near a 120 gallon vessel. What it holds is R290 grade propane guaranteed to 99. 5%. The lot analysis shows methane under 1 ppm, ethane under 3 ppm, propylene under 5 ppm and isopentane under 1 ppm. Water comes in under 3 ppm and sulfur under 1 ppm.