Our DOT-4BA 240 cylinders arrive to you 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″–14 NGO–LH–INT; meaning .885″ diameter thread, 14 threads per inch, National Gas Outlet form, and left-hand internal thread.
We offer a 1/4″ male SAE stainless steel adapter (part#: SS304084) to use for connecting this product to your system.
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 re-prints of the return label.