Pentek 150166 20in BlackBlue Valve-In-Head Filter Housing features:

• 3/4″ Black VIH Cap w/PR for #20 VIH Blue Housings

• #20 Blue Sump for Standard Housings

• #241 Buna-N O-ring for Standard Housings

• Cartridges not included

This product must be ordered in quantities of 8.