Respironics has several generations of this humidifier that has resulted in two versions of the Water Chamber that have two distinctly different gasket configurations.
The Water Chamber Kit will fit all versions of the M Series Humidifier. Includes two lids for either, the side-by-side or J-Tube style inlet/outlet seals, 1/Carton. If you are not sure of the version of REMstar M Series Humidifier that you have purchase this kit.
The R2 Water Chamber replacement with the Side-by-Side openings, 1/Carton. Compatible with the original REMstar Humidifier model. If the Humidifier Tempurature Knob has no underscore under the 5 digit, then this Water Chamber will fit.
The R3 replacement with the J-Tube openings, 1/Carton. Compatible with the REMstar Humidifier models 1049109 and 1037652. Respectively, the DC version and last AC version with the J-Tube design. If the Humidifier Tempurature Knob has an underscore under the 5 digit, then this Water Chamber will fit.
If you are not sure which version to buy, select the Water Chamber Kit. If we are out of stock on the R2 or the R3 we will substitute with the Kit version.
