Twin head & bracket for use with swing and twist filter cartridgesTwin head & bracket for use with swing and twist filter cartridges Twin Head & Bracket (PNP) Twin head and bracket for the PNP (Swing & Twist) range of filters Built in water shut off for quick and easy filter changes Cartridges sold separately SWING & TWIST FILTRATION SYSTEMS Automatic shut off filter head makes filter replacements safe and easy Compact design allows maximum use of space under sinks or behind water dispensers Cost saving Reduces