Hollis DC4 212 and 221 Balanced Regulators Video Review

This demonstration video goes over the features of the Hollis DC4 212 & 221 Balanced Regulator. The DC4 212 Regulator comes with an over-balanced first stage achieves superior performance by increasing your air flow the deeper you go and a pneumatically balanced second stage. The DC4 212 Regulator features an environmentally sealed first stage provides greater reliability, less maintenance and higher performance. The 212 second stage comes with a "diver adjustable" air flow and a "diver adjustable" venturi to prevent unwanted free-flow. Whereas the 221 second stage comes only with a "diver adjustable" venturi to prevent unwanted free-flow. There are easy grip controls even while wearing gloves.

Share this video:

Average Rating: Length: 01:16   Number of views: 4599

Rate This Video: Save My Rating

Tags: hollis dc4 212 regulator   hollis regulator   hollis scuba   hollis dc4   hollis 212 regulator   hollis scuba regulator   scuba regulator   dc4 regulator   212 regulator   hollis scuba  

Embed this video:     Some rights reserved

View All Scuba.com Videos


 
 


  • Choose
    Currency:

Product Information Questions? Contact our certified instructors
E-mail our instructors at info@scuba.com

Corporate Office: Scuba.com, 1752 Langley Avenue, Irvine CA 92614

Privacy Policy
Scuba diving portal for diving equipment
Scuba requires professional scuba diving training and certification
Prices subject to change.
Copyright 2000-2014