Mares Cold Water Dry Kit for MR42 & V42 1st Stages


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About Mares Cold Water Dry Kit for MR42 & V42 1st Stages

Mares diaphragm first stages are ideal for cold water diving because the moving parts do not come into contact with the water. For diving in especially cold water, it is advisable to equip the Mares first stage with the CWD (Cold Water Diving) kit. The CWD kit is a device that completely insulates all parts of the first stage from direct contact with water.

The main spring cavity is completely isolated from the outside environment and protected against the formation of ice crystals. The CWD kit diaphragm, made of specially selected materials, encloses the main spring cavity and uses a mechanical piston to convey variations of ambient pressure due to changes in depth to the main diaphragm. The dry piston offers maximum sensitivity to changes in environmental pressure, ensuring faster and more precise regulation of intermediate pressure than other systems.

Manufactures from marine grade chrome plated brass and comes with all components and silicone required for installation. Like all Mares regulators and regulator components it comes with a limited lifetime warranty.

Warranty Information

This product has a limited lifetime warranty.
(800) 874-3236

Mares Cold Water Dry Kit for MR42 & V42 1st Stages Features

  • Fits Mares MR42 & V42 First Stages
  • Reduces Potential of 1st-Stage Freeze Up
  • Must for Cold Water Diving
  • Marine Grade Chrome Plated Brass
  • Limited Lifetime Warranty

Mares Cold Water Dry Kit for MR42 & V42 1st Stages Specifications

Marine Grade Chrome Plated Brass
Model Compatibility
Mr42, V42
Weight [with packaging]
0.5 lb
Weight [with packaging]
0.5 lb

Questions & Answers Powered by TurnTo®

Questions about this item:

Jason S  First off is this needed in 35 degree water? Second can the general user install this?
Frank L  It is not needed, but would provide extra protection from freeze ups. This should be installed by an authorized regulator repair technician.
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