Pentair 075279 Vent Tube | 46" | Purex Filters

The OEM Pentair 075279 Vent Tube is a 46-inch replacement specifically designed for Purex SM and SMBW 2000 and 4000 series D.E. filters. Its primary function is to maintain proper airflow within the filter tank by allowing air to vent during operation, which is essential for maintaining filter efficiency. Compatible with the designated Pentair filter lines, this tube is simple to install and ensures consistent system performance. Crafted from durable materials resistant to pool chemicals and environmental stress, it provides long-term reliability. Proper air venting avoids stagnation in the filter system and supports clean water circulation.

Highlights

• Critical Airflow Venting Function: Allows trapped air to escape in Pentair Purex SM/SMBW filters, preventing pressure imbalances and helping sustain filtration quality.

• Precise OEM Replacement Length: A 46-inch direct-fit tube engineered for compatibility with Purex SM and SMBW 2000 and 4000 series models, ensuring seamless installation.

• Improves Filtration Reliability: Eliminates air pockets that can reduce system performance or cause erratic pressure readings during filtration cycles.

• Durably Built for Pool Use: Made from materials that withstand exposure to pool water, chemicals, and repeated service demands.

• Enhances Operational Stability: Promotes uninterrupted filter cycles and supports clear water circulation throughout the pool system.

Includes

• (1) Pentair 075279 Vent Tube 46"

Compatibility

• Pentair Purex SM 2000 Series Filters
• Pentair Purex SM 4000 Series Filter
• Pentair Purex SMBW 2000 Series Filter
• Pentair Purex SMBW 4000 Series Filter

Additional Info

Shopping for the Pentair 075279 Vent Tube at your local WPM? This content helps confirm if it fits your filter, provides install guidance post-purchase, and outlines warning signs that mean it’s time to replace your old one.

Confirming Fit at a Local Shop Near Me

Check these questions before heading to WPM to avoid compatibility issues.

Will the 075279 vent tube fit my SMBW 2000 series filter near me?

Can I get help at my local WPM checking the tube’s length?

Is this 46-inch tube correct for a Purex 4000 system?

What filter models in stock use the same size vent tube?

Can I confirm fit with a visual inspection at a WPM location?

Installing the Vent Tube After Purchase

Once you pick up the vent tube locally, here’s what to know about installation.

How do I align the vent tube with the internal air relief path?

Do I need to lubricate or seal the base before inserting the tube?

Can I install this without removing all the grids?

Should the vent tube be flush with the manifold opening?

Identifying When to Replace the Vent Tube

Experiencing filter issues? These are signs your tube might be worn out.

Why is air building up in the filter after backwashing?

Can old vent tubes cause internal rattling noises?

What does moisture buildup in the tube indicate?

How often should this vent tube be replaced for best results?

Diagram