The XL4+ Octopus provides the same features and performance as the XL4+ 2nd stage and is the perfect Octo for the XL4+ regulator

the RK4 also delivers optimum performance in open spaces

The Ultralight Travel Plate is for the diver who enjoys diving back plate and wings but doesn't want the weight that a traditional metal plate has

the MTX-RC octopus is the perfect partner to our MTX-RC regulator

The pneumatically balanced valve provides superior performance for an alternate air source

xtx50 sidemount set dive regulator DiveRegulators The XL4+ Octopus provides theThe Apeks sidemount regulator kit delivers the necessary hardware and accessories for sidemount diving, along with two award winning XTX50 regulators. Everything a diver needs for a sidemount breathing system is found in this set.