Pentair 5/8 in. Mechanical Seal Set | SuperFlo, SuperMax & Challenger Pumps | 354545S SLAW A failed or missing air

A failed or missing air bleed assembly can prevent accurate pressure readings and reduce filtration efficiency

it delivers a uniform pore structure throughout the media — resisting channeling and maintaining consistent filtration performance across every cycle

which helps protect chlorine from sunlight

Dissolves quickly in the pool allowing you to get back in your pool faster to enjoy a relaxing and fun time

Pentair 5/8 in. Mechanical Seal Set | SuperFlo, SuperMax & Challenger Pumps | 354545S SLAW A failed or missing airThe Pentair Mechanical Shaft Seal Set (354545S) is the OEM replacement 5 8 in. mechanical seal for the SuperFlo, SuperFlo VS VST, SuperMax, SuperMax VS, Challenger, OptiFlo, and Dynamo pump families. IMPORTANT: THIS LISTING IS FOR A SEAL SET (KIT) Part 354545S is sold as a seal set both the rotating and stationary seal faces are included. You are purchasing a complete replacement kit, not an individual seal component. IMPORTANT: MANUFACTURE DATE