Dive Rite UnBalanced Derlin Relief Valve ( P-Valve )

Newly designed in 2012, our non Balance Relief Valve is a critical accessory for any drysuit diver, especially on long dives. Without a relief valve, divers tend to intentionally dehydrate themselves to avoid the "urge" during an extended bottom time dive. Hydration is critical to avoid decompression sickness and with our Balanced Relief Valve proper hydration is no longer a concern. Machined from Delrin, it is light weight so it will not add stress to drysuit material, and it is corrosion resistant.