70/30 N-Butane/Propane Blend — Ultra-High Purity, Ready for Pro Workflows
Meet EcoGreen LP-20: a 70% N-butane / 30% N-propane blend refined to 99.97% purity for consistent, clean results in closed-loop systems and lab processes. This colorless, non-odorized solvent is free of H₂S-based ethyl mercaptan odorants and arrives in a DOT-APPROVED 4BA-400 cylinder with an internal dip tube for reliable liquid withdrawal.
Built for Compatibility and Ease
Choose single-valve (CGA-510 POL) or dual-valve (1/4" male SAE flare) connections to match your setup; an optional 1/4" male SAE stainless adapter (SS304084) is available for single-valve cylinders. The LP-20 ships with our FREE RETURN EZ EXCHANGE program—keep the box and label, send back your empty, and receive a $50 coupon toward your next purchase. Designed to help growers streamline post-harvest processing, this balanced blend supports faster chilling, efficient recovery, and smooth system operation.
Composition & Use Highlights
• Composition: 70% N-butane, 30% N-propane; 99.97% purity
• Cylinder: 22 lb (10 kg) liquid solvent; internal dip tube for liquid withdrawal
• Valving: Single-valve CGA-510 (POL) or dual-valve liquid/vapor 1/4" SAE flare
• Compliance: DOT-APPROVED 4BA-400 cylinder
Our cylinder tanks are DOT-APPROVED 4BA-400 cylinders. Please see below for details on the valves that this cylinder will come with:
SINGLE VALVE:
The LP-20 cylinder is equipped with an internal liquid dip tube attached to an external liquid withdrawal port. The withdrawal port is POL, which is the common name for the standard CGA-510 connection. The thread specification is .885”³”“14 NGO”“LH”“INT; meaning .885”³ diameter thread, 14 threads per inch, National Gas Outlet form, and left-hand internal thread.
FOR THE SINGLE VALVE ONLY: We offer a 1/4”³ male SAE stainless steel adapter (part#: SS304084) to use for connecting this product to your system.
DUAL VALVE:
The LP-20 cylinder is equipped with an internal liquid siphon dip tube with 1 liquid port (red) and 1 vapor port (blue). The red port is attached to the internal liquid siphon dip tube. The size and type of the valve connections are 1/4”³ male SAE flare fittings.
Please refer to the instructions included in your delivery regarding our EZ Exchange Program, and be sure to keep your boxes and provided return labels for FREE return shipping! We will email you a $50 coupon code to use toward your next purchase when your empty tank is shipped back to us using the provided labels and boxes. We are not able to provide reprints of the return label.
IMPORTANT: We will not buy back any cylinder that has been damaged to a condition that prohibits its legal transportability (i.e. if your cylinder ring is bent, the valve is not fully operational, the cylinder body is dented, or the cylinder leaks, we will NOT buy the cylinder from you). If your cylinder is damaged on arrival, please let us know within the first 24 hours of receiving it.
California Customers
EcoGreen Industries products purchased by customers not holding a current CA license for extraction, are available with a proprietary food-grade, oil-based oderant. The product has been independently tested and allows customers to maintain consistent and desired results.
Only CA customers who don't hold an extraction license will receive the odorized solvent. All others in the continental US will receive non-odorized solvent.