HomeREGULATORSSLIMLINE 3 OCTO SLIMLINE 3 OCTO$159.95 Keep a Low-Profile. SLIMLINE 3 OCTO quantity Buy now SKU: REGZA2003 Category: REGULATORS Product ID: 6422 Description Description A super streamlined alternate air source that sits flat to reduce drag and prevent tangles. You May Also Like ALPHA 10 OCTOPUS $179.95 Buy now Z2-Z3 REGULATOR $329.95 – $599.95 Buy now ST1 REGULATOR $649.96 Buy now T3 REGULATOR $1,749.95 Buy now