
155-399 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $50.00 | Condition is New, Weil-McLain 540131107 Heat exchanger gasket kit set for UR155-399, FREE SHIPPING | 99.9% |
![]() | $50.00 | Condition is New, Weil McLain - Cover Plate Gasket & Insulation - Ultra Gas Boilers Sizes 155-399, shipping cost = $8.00 | 99.8% |
![]() | $119.54 | Condition is New, 383500620 WEIL McLAIN ULTRA 155-399 MAINTENANCE KIT INCLUDES: * IGNITER *, FREE SHIPPING | 100.0% |
![]() | $500.00 | Top Pick! Condition is New, WEIL MCLAIN EASY-UP MANIFOLD KIT FOR ULTRA 155-399 383500766, shipping cost = $77.93 | 99.5% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $69.90 | Top Pick! Condition is Open box, Weil McLain - Cover Plate Gasket & Insulation - Ultra Gas Boilers Sizes 155-399, FREE SHIPPING | 100.0% |
![]() | $95.00 | Condition is Open box, Weil Mclean Maintenance Kit 383500620 155 - 399 New open box , FREE SHIPPING | 100.0% |

The Weil-McLain 155-399 Kit is an essential accessory for homeowners with Ultra Series 383-500-620 gas boilers. This kit includes all the necessary components to perform routine maintenance and ensure optimal performance of your boiler system.
The heart of this kit is the 155-399 stainless steel primary side circulator. Designed for use in high-temperature applications, it delivers efficient circulation of water throughout the boiler system. With its heavy-duty construction and sealed motor, this circulator is built to last, offering reliable operation for years to come.
The 155-399 Kit also includes a 2-inch x 1-1/2-inch male threaded stainless steel primary side return tee. This tee allows for easy installation of the return line, ensuring proper water flow and efficient heat transfer within the boiler system.
Another essential component of the kit is the 155-2470 stainless steel vent kit. Compatible with Ultra Series boilers, this vent kit includes a vent connector, a vent cap, and all necessary clamps and screws. Proper venting is crucial for safe and efficient boiler operation, making this an indispensable addition to your maintenance routine.
Lastly, the Weil-McLain 155-399 Kit includes a 1/2-inch x 1/2-inch ball valve. This valve enables easy access to the boiler system for servicing and maintenance, while also preventing water leakage when not in use.
In summary, the Weil-McLain 155-399 Kit is a comprehensive solution for maintaining and optimizing the performance of your Ultra Series 383-500-620 gas boiler. With its high-quality circulator, return tee, vent kit, and ball valve, this kit ensures that your boiler system operates at peak efficiency and reliability.
Weil-McLain 155-399 Kit for Ultra Gas Boilers 383-500-620: A Comprehensive Analysis
The Weil-McLain 155-399 kit is designed for use with Weil-McLain Ultra Series gas boilers with model numbers 383-500-620. This kit includes essential components for the proper functioning and maintenance of these boilers. In this analysis, we will discuss the key features, advantages, and disadvantages of this kit.
Features:1. Contains essential components: The Weil-McLain 155-399 kit includes crucial parts like a draft diverter, vent kit, and a condensate neutralizer. These components are necessary for efficient boiler operation and safety.
2. Designed for Ultra Series Boilers: This kit is specifically designed for Weil-McLain Ultra Series gas boilers, ensuring compatibility and ease of installation.
Pros:1. Improved Combustion Efficiency: The draft diverter in the kit helps maintain proper draft conditions for optimal combustion efficiency, reducing energy waste and lowering utility bills.
2. Enhanced Safety: The vent kit ensures safe exhaust gas venting, while the condensate neutralizer prevents the formation of acidic condensate, protecting the boiler from corrosion and potential damage.
3. Reduced Installation Time: Since the kit includes all the necessary components, installation time is significantly reduced, making it a convenient choice for contractors and DIY enthusiasts.
Cons:1. Limited Compatibility: The Weil-McLain 155-399 kit is designed for use with specific Weil-McLain Ultra Series gas boilers (383-500-620), making it less versatile for other boiler models.
2. Additional Cost: While the kit simplifies the installation process, it also comes with an additional cost for customers, as they must purchase the entire kit rather than individual components.
Conclusion:The Weil-McLain 155-399 kit is an excellent choice for those who own or are installing Weil-McLain Ultra Series gas boilers with model numbers 383-500-620. The kit offers several advantages, including improved combustion efficiency, enhanced safety, and reduced installation time. However, it comes with a higher cost due to its limited compatibility and inclusion of multiple components.
Recommendation:For those in need of components for their Weil-McLain Ultra Series gas boilers, the 155-399 kit is a valuable investment due to its convenience and comprehensive nature. However, for those who only require individual components, it would be more cost-effective to purchase them separately. Carefully consider your specific needs before deciding whether to invest in the full kit or purchase components individually.
Details:
New open box well Mclain 383-500-620 maintenance kit for ultra gas boilers sizes 155,230,299 and 399.
specifications centrafurn:
- brand: Weil-mclain
- mpn: 155-399
- type: Central Furnace
- power source: Gas
- heating system: Boiler
returns centrafurn:
- method: money back
- time: 30 days
- paid by: buyer
- policy: returns accepted
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
payments centrafurn:
- credit card: visa
- other
- wallet: paypal
offer centrafurn:
- options: ship-to-home
- sold #: 21
- started: february 27, 2025
- availability: in stock
- prices: $50.00–$500.00
- item condition:
- New
- Open box
- in stock #: 5
- best offers: true
shipping centrafurn:
- transit: 4-9 days
- type: calculated
- class: standard
- service: usps ground advantage
- carrier: usps
seller centrafurn:
- rating: 99.5%
- city: nashville, arkansas
- # reviews: 734
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