HAC-504 Aftermarket Honeywell Humidifier Wick Filter
This Relion humidifier wick replacement filter fits Relion RH1300. It measures approximately 5 H x 4 1/4 ID x 6 1/2 OD x 1 and prevents surface growth and migration of mold, fungus, algae, and bacteria. For optimum performance, replace filter at the beginning of each season or every 2 months depending on use.