525-395 Conversion Kit, Rex Regulator for 37SS – This kit contains the Rex Regulator and
stainless steel pod assembly for easy conversion of the 37SS into the higher performing KM77.
The kit also contains the 555-173 KM77 Bent Tube, 510-743 Oral Nasal Mask, and 510-741
Water Dump Valve, as well as a mount nut, gasket, and washer).