Hello Daniel, Thank you for your inquiry! Once you select your 1st and 2nd stage regulator combo, you can also attach an Octopus to the 1st Stage LP port. http://www.scuba.com/scuba-gear-33/033344/ScubaPro-C200-Scuba-Octo.html
or the http://www.scuba.com/scuba-gear-33/035082/ScubaPro-R295-Scuba-Octo.html
If you have any questions or wish to place an order, please call us at 1-800-247-2822 or 949-221-9300.