Ic-101l bulk - no fittings w/4-color label, this Pentek ic-101l in-line filter is suitable for reduction of chlorine taste and odor and other unwanted tastes and odors. It has a polypropylene housing for dimensional stability and resistance to chemicals, and a coconut shell granular activated carbon filtering medium. It measures 10-1/2 x 2 inches (h x w). it has 1/4" female national pipe taper (npt) threaded inlet and outlet ports, and its estimated lifespan is 2,500 gallons. This in-line filter causes an initial pressure drop of 10 pounds per square inch (psi) at 0.5 gallons per minute (gpm) and operates at a maximum temperature of 100 degrees f (37.8 degrees c). it is tested and certified by the national sanitation foundation (nsf), and is suitable for residential and commercial drinking water filtration.