The Pelican PSF-1R is the correct replacement shower filter for the following models:
The Pelican PSF-1R Replacement Shower Water Filter fits the Pelican PSF-1, PSF-1W and PSF-1NH shower filters. The Pelican water filter reduces impurities in your shower water, including chlorine, chloramines, and other chemical contaminants. The Pelican replacement filter features a "Quick Connect" style that for quick and easy replacements. The Pelican shower filter produces clean water that reduces dry skin/flakiness and can even reduce the fading on color-treated hair.
Pelican PSF-1R Replacement Shower Water Filter specifications: