MAINLINE ML10465 Pvc Air Admittance Valve 722301390016 1.5 2

( Brand: Mainline ), ( Manufacturer Part Number: ML10465 ), ( Part Type: Valve ), ( UPC: 722301390016 )

Review MAINLINE 1.5 Inch Pvc Air Admittance Valve Replacement

The **Mainline ML10465 1.5" PVC Air Admittance Valve (AAV)** is a high-performance, code-compliant solution designed to efficiently manage sewer gas venting in residential and light commercial plumbing systems while maintaining optimal pressure balance and preventing backflow. Engineered with precision, this valve is crafted from durable **1.5-inch Schedule 40 PVC**, ensuring long-lasting durability and resistance to corrosion, UV degradation, and chemical exposure making it ideal for both indoor and outdoor installations. Its sleek, compact design allows for seamless integration into existing plumbing layouts, minimizing space constraints while delivering reliable performance. The ML10465 operates on a passive air admission principle, automatically venting sewer gases to the atmosphere when negative pressure occurs in the drain line, thereby eliminating the need for traditional wet vents or rooftop vent stacks. This not only simplifies installation but also reduces the risk of sewer gas infiltration and foul odors indoors. Featuring a **patented one-way flap mechanism**, the valve ensures unidirectional airflow, preventing backflow while allowing smooth venting when required. Its robust construction includes reinforced gaskets and a weather-resistant housing, providing protection against temperature fluctuations, moisture, and physical stress. Whether used in new construction or retrofits, the ML10465 adheres to **plumbing codes such as IMC, UPC, and local regulations**, offering a compliant and eco-friendly alternative to conventional venting systems. With its quiet operation and minimal maintenance requirements, this air admittance valve is a practical choice for plumbers and homeowners seeking an efficient, long-term solution for managing sewer gas while preserving indoor air quality.

### **Pros and Cons of buying a Mainline ML10465 1.5" PVC Air Admittance Valve (AAV)**

1. **Efficient Ventilation for Low-Slope Drains** The ML10465 is designed to replace traditional vent stacks in low-slope plumbing systems, reducing the need for costly rooftop vents. This is particularly useful in areas where venting through roofs is impractical or restricted.

2. **Space-Saving Installation** Unlike conventional vent pipes that extend vertically through roofs, this AAV allows horizontal or downward routing, making it ideal for tight spaces, basements, or confined plumbing layouts.

3. **Reduced Risk of Sewer Gas Entry** When properly installed, an AAV prevents backflow of sewer gases while allowing air to enter the drain system, maintaining proper water flow and reducing foul odors.

4. **Cost-Effective Alternative to Roof Vents** Eliminating the need for rooftop venting can save on materials, labor, and potential roofing modifications, especially in multi-story buildings or retrofits.

5. **Compliance with Modern Codes** Many plumbing codes (e.g., IMC, UPC) now allow AAVs in specific applications, making this a viable option for new installations or upgrades where traditional venting is not feasible.

6. **Durability and Corrosion Resistance** The PVC material is resistant to rust and chemical corrosion, ensuring longevity in residential and light commercial applications.

7. **Quiet Operation** Unlike some older venting systems that can produce noise, a properly functioning AAV operates silently, which is beneficial in residential settings.

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1. **Limited to Specific Applications** AAVs are not suitable for all plumbing systems. They are typically restricted to low-slope drains (e.g., floor drains, floor sinks) and cannot replace main stack vents in all cases. Always check local codes for restrictions.

2. **Potential for Improper Installation** If not installed correctly (e.g., improper sealing, incorrect sizing, or placement below the drain s water seal), an AAV can fail to prevent sewer gas entry or allow air to escape properly. This requires careful adherence to manufacturer and code guidelines.

3. **Not a Universal Solution** AAVs are not designed for high-flow or high-pressure systems (e.g., commercial kitchens, heavy-duty plumbing). They are best suited for residential or light commercial use with low-volume drainage.

4. **Maintenance Requirements** While generally low-maintenance, AAVs can become clogged with debris over time, especially if installed near sources of sediment. Regular inspection is recommended.

5. **Code Restrictions Vary by Location** Some jurisdictions may have strict rules or outright ban AAVs in certain applications. Always verify local plumbing codes before purchasing or installing.

6. **Higher Upfront Cost Than Traditional Vents** While AAVs can save money long-term by avoiding roof modifications, the initial cost may be higher than installing a simple vent pipe.

7. **Risk of Failure Under Extreme Conditions** In rare cases, AAVs can fail if exposed to freezing temperatures (though the ML10465 is rated for indoor use) or if subjected to excessive pressure differentials.

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The **Mainline ML10465 1.5" PVC Air Admittance Valve** is a practical and code-compliant solution for replacing traditional vents in low-slope drain applications, particularly in residential or light commercial settings where rooftop venting is impractical. Its space-saving design, corrosion resistance, and efficiency in preventing sewer gas entry make it a strong choice for specific plumbing scenarios.

However, it is **not a one-size-fits-all solution**. The AAV requires careful installation, adherence to local codes, and proper sizing to function correctly. It is best suited for:

- Floor drains or floor sinks in basements.

- Retrofits where venting through roofs is difficult.

- New constructions where horizontal venting is preferred.

For applications requiring high-flow vents, commercial kitchens, or areas with strict plumbing codes against AAVs, traditional venting remains the safer option.

- **Buy the ML10465** if you are installing a **low-slope drain system** (e.g., basement floor drain) in a **residential or light commercial setting** where rooftop venting is not feasible, and local codes permit its use.

- **Consult a licensed plumber** to ensure proper installation, sizing, and compliance with local regulations.

- **Avoid using it** in high-flow systems, commercial food service applications, or where codes explicitly prohibit AAVs.

- **Consider traditional venting** if the AAV s limitations (e.g., code restrictions, improper application) make it unsuitable for your project.

For most standard residential basement drain applications, the ML10465 is a reliable and cost-effective choice when installed correctly.

Details:

part #: ml10465 price

• $27.95

specifications tubingplumbingzo:

• brand: Mainline
• mpn: Ml10465
• part type: Valve
• upc: 722301390016

shipping tubingplumbingzo:

• transit: 4-9 Days
• carrier: USPS, FedEx
• class: Standard
• cost: $0.00
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• type: Calculated

seller tubingplumbingzo:

• rating: 99.6%
• # reviews: 12074
• city: Powder Springs, Georgia

payments tubingplumbingzo:

• other
• wallet: Google-pay
• credit card: Diners-club

offer tubingplumbingzo:

• options: Ship-to-home
• sold: 0
• started: February 5, 2026
• availability: In Stock

general tubingplumbingzo:

• condition: New
• Building Materials Supplies > Industrial Plumbing Fixtures > Faucets

returns tubingplumbingzo:

• time: 60 Days
• policy: Returns Accepted
• method: Money back
• paid by: Buyer