the new fx crowns d29 o-ring has changed to a 10x1.5 & so has d30 to a 7.5x2 (per newman @ fx) if you use the d29- 9x1.5 (per fx crown parts list) you may damage your reg.as i did..... hope this helps somebody...
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FX Crown AMP reg. o-ring changes
- Thread starter allenbowles
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