Our condensate neutralizer recharge kit is 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 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! Our tank recharge kits are now conveniently packaged for each tank model 4TKRCK and 6TKRCK.