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Since 1999, Broadley-James Corporation has been supplying housings and DO, sensors with a slightly taller retainer ring than in the past. The taller ring and additional threads were necessary to be compatible with the new safety ports offered by B. Braun Biotech and others. These taller rings will fit any old or new port.
Retainer Ring for 25mm Port
All port retainer rings from Broadley-James Corporation are 316L stainless steel. Housings and DO sensors come with an attached retainer ring, however, the ring may need to be replaced due to loss or damage.
| Part Number | Height | Description |
| AM-9200 | 0.87” (22.1 mm) | Current Style 25 mm Port Retainer Ring and C-clamp |
| AM-9363 | 0.70” (17.8 mm) | Old Style 25 mm Port Retainer Ring and C-clamp |
| AM-9388 | 25 mm Ergo-ring and c-clamp | |
| AM-9201 | 19 mm Port Retainer Ring and C-clamp |