Halcyon - OVER PRESSURE VALVE (OPV) WITH GASKET Options:STANDARD CORD - COARSE THREAD - CURRENT VERSION ON NEW WINGS in case you forgot to

in case you forgot to remove the nose plug after you have finished diving

Increased light intensity from the target light

and tropical green H

Squeeze-to-adjust buckles are tucked behind the lens for a sleek hydrodynamic design

Halcyon - OVER PRESSURE VALVE (OPV) WITH GASKET Options:STANDARD CORD - COARSE THREAD - CURRENT VERSION ON NEW WINGS in case you forgot toHalcyon OVER PRESSURE VALVE (OPV) WITH GASKET Halcyon replace OPV for all Halcyon wings. Please make sure to select the correct Halycon OPV based on the date of manufacture of your wing. The standard cord is a thinner material and is what comes stock on all Halcyon wings. Older Halcyon wings (pre 2019) require the fine threaded OPV, while newer (2019 to date) require coarse threaded OPV. The 3MM cord is a little thicker and is sometimes preferred by