KingBra 4Pcs Humidifier Wicking Filters Replacement Filter Compatible with Relion WF813 ReliOn RCM-832 Price: $22.99 (as of 05/10/2022 18:42 PST- Details)

1. Compatible with Relion WF813. ( Note: Adjustable Size. This humidifier wick filter is honeycomb filter design, porous, size is about 5.7″ X 3.5″ X 1.5″-5.9″ x 3.75″ x 1.6″, it may be squeezed during transportation and the size may be slightly different from the original filter, just gently pull it with your hands to restore it. 30 days money back guarantee, if the size is unable to recover, please contact us)
2.The humidifier filter is durable and can be used for a long time
3.In order to achieve the best filtering effect, we recommend that you replace the filters and brushes every half a year