Our condensate neutralizer recharge kits are available for neutralizers of all sizes. All Neutra-Safe recharge kits include replacement o-rings when applicable. The improved formula of calcite and magnesium oxide is available in refill kits for any of Neutra-Safe’s condensate neutralizers. Professional service technicians should inspect and recharge Neutra-Safe condensate neutralizers on an annual basis at minimum. All 2-inch tube style neutralizers and the tray model can be refilled quickly and efficiently with Neutra-Safe’s unique sack recharge kit. The media in the refill kit is contained in a special fabric sack making installation a snap!