The new Si Tech Antares ring system for drysuits is all you would ever need for any diving environment.
The New Antares Silicone Ring System - Contains:
2x 60251 - PU Ring
2x 60260 - Stiff Oval Ring
2x 60261 - Oval Glove Ring
2x 60263 - Oval Spanner Ring (Blue)
2x 60264 - Oval Spanner Ring (Green)
2x 61025 - Silicone Wrist Seal
1x 60540 - Lube Stick
2x 60233 - Pressure Equalisation Tubes
1x User Manual
This system comes complete with silicone seals which require the PU ring to be glued into the suit. However this system can be used on a drysuit already fitted with latex seals without the need to glue any parts.