Jackson

Model 20-330Non handedDouble actingExtera Light Duty, Heavy Duty, and Adjustable spring sizesIdentified by # on shaftHold Open (HO) or No Hold Open (NHO) - 90 or 105 degreeSquare shaftDual valve

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Model 20-330 DUMMY PIVOTAvailable in all Jackson model configurationsNon handedNo spring power - Pivot only