Rheem 801S Series Installation Instructions Manual page 31

FIGURE 27
FILTER LOCATIONS
BOTTOM RETURN
FLANGE WRAPS
AROUND BACK AND
SCREWS TO THE
REAR OF THE
FURNCE, AT THE
LOCATIONS
PROVIDED
FIELD SUPPLIED FILTER
RXGF-CD
ACCESSORY FILTER RACK
SIDE RETURN
RXGF-CB ACCESSORY
FILTER RACK
FIELD SUPPLIED FILTER
CUT OUT USING
EMBOSSED ANGLES
AS A GUIDE
FOR PROPER SIZE
23" X 14"
ST-A1220-07-X0
RXGF-CB
FIELD SUPPLIED FILTER
ST-A1220-06-X0
HORIZONTAL RETURN
ST-A1220-07-00
ST-A1220-06-00
31