Pentair Buna-N Cover O-Ring | Ultra-Flow Strainer | 39300600Z Main Drains Clear and Perfect may be

Clear and Perfect may be oxidized by high levels of sanitizer

For pools that have a lot of leaves and debris

we recommend using our Spa Refresh formula specifically tailored for smaller water systems

Exclusive 32 dial stop adjustable indicator plate for precise flow control

Pentair Buna-N Cover O-Ring | Ultra-Flow Strainer | 39300600Z Main Drains Clear and Perfect may beThe Pentair 39300600Z is the OEM replacement Buna N cover O ring for the Ultra Flow strainer, for units manufactured after November 1994. IMPORTANT: VERSION DATE CONFIRM BEFORE ORDERING This O ring is specified for Ultra Flow strainer units manufactured after November 1994. Verify your unit's manufacture date before ordering to ensure correct fitment. IMPORTANT: LUBRICATION REQUIRED SOLD SEPARATELY Always lubricate this O ring with a silicone based