Polaris Volute, PB4-50

• Genuine Polaris Part
• Suitable for new style PB4-50 Polaris Booster Pumps
• Part Number WR0520500
• Commonly get pin hole leaks and require replacement
• Drain Plug Not included - retain from your old volute
• Replacement Oring available separately.
• Item #1 in the exploded diagram