The SPure H₂O Filter XL is a moisture, oil, and dust purifier suitable for drying laboratory air or central air supplies. It has a 400 cc total volume of cobalt-free CoFree™ indicator and molecular sieve 5A in a high-strength polycarbonate body. The CoFree changes from greenish-yellow to blue at low relative humidity to warn of leaks in the gas stream. Our unique O-ring design allows hand-removal of the cartridge without disconnecting the fittings from the line, while a plastic insert at each end keeps the packing from spilling.

For applications requiring very high levels of purity we recommend using one of the chromatography-grade gas purifiers, such as the ZPure Glass Indicating H₂O Filter or the stainless steel ZPure H₂O Filter if no visual indicator is required. *Not recommended for Hydrogen use.