40/40/20 Custom Blend



99.97% Ultra High Purity

40% Butane, 40% Isobutane, 20% Propane  Custom Blend

You will receive a $50 credit value toward your next filled cylinder tank purchase when your empty tank is returned and shipped back to us using the provided labels and boxes. Please refer to the included instructions regarding our Tank Exchange Program, and keep your boxes and provided return labels for FREE return shipping!

Actual N-Butane / Isobutane / Propane liquid weight is 22lb (10kg)

Tank size is 50#

Sent via FedEx Ground: $55 flat-rate (per tank) 

Product Documents

Safety Data Sheet

In stock

SKU: LW404020 Category:
Bulk Discount breaks at quantities of 10, 20, 40


Our product is clean, colorless, and non-odorized while being free of any hydrogen sulphide-based ethyl mercaptan odorants. We perform continual and on-going 3rd party testing to ensure that our products always meet our high-quality standards. Currently, this product has an ULTRA HIGH PURITY of 99.97%.

These cylinder tanks are the new DOT-APPROVED 4BA-400 cylinders. Each cylinder is equipped with an internal liquid siphon dip tube with 1 liquid port (red) and 1 vapor port (blue). The liquid port is attached to the internal liquid siphon dip tube.  The size and type of the valve connections are 1/4″ male SAE flare fittings.  These cylinder tanks are refillable and are part of our Tank Exchange Program.

Additional information

Weight 51 lbs
Dimensions 12.5 x 12.5 x 20 in