The Hollis second-stage diaphragm retainer tool is designed for servicing balanced downstream regulators, including the Hollis 212, 221, and 321 series. It ensures precise engagement with the 27046 retaining ring, preventing thread stripping or damage during maintenance.
 
How It Works:
The tool aligns with the grooves of the internal diaphragm retaining ring within the second-stage casing. By applying even, distributed pressure across the threads, it allows the service technician to safely unscrew or tighten the retainer ring during regular servicing or parts replacement.
 
Key Features & Specifications:
Compatibility: Designed for balanced downstream Hollis second-stage regulators, including the Hollis 212, 221, and 321 series.
Material: Machined out of white acetal (POM-C).
 
Technical Details:
Manufacturer: Scuba Service Tools
SKU: 1000-SST-075