Halcyon Over Pressure Valve (OPV) with Gasket Cressi Undervests

Halcyon Over Pressure Valve (OPV) with Gasket Cressi UndervestsThe Halcyon Over Pressure Valve (OPV) with Gasket is a replacement part for any Halcyon wings. Please note there are two different type of Halcyon OPV based on the manufacture date of your wing: the standard cord is made of thinner material while the coarse thread is slightly thicker (3mm). Older Halcyon wings (pre 2019) require the standard OPV while newer wings (2019 to date) require coarse threaded OPV. The coarse thread is preferred by most

iPhone SE 3rd Gen

Size: 77mm x 68mm x 25mm

Easy to fit

The special magnetic system stops it from making unwanted and irritating noises when not in use

using float arms to achieve neutral buoyancy for your device underwater will allow you to create a more complex lighting set up with proper lighting angles

This set is a complete twin tank regulator setup

Dual LED indicator offers instant knowledge of status

the MK25/S600 combination has been Scubapro's most popular combo for many years

This makes it the perfect transmitter for demanding divers

The precision machined neoflon (PCTFE) seat is made from harder

Slides onto 50 mm single tank webbing

giving your images vibrant colours in green or blue waters