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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
2 in. / 4 in. x 39 in. Plastic Condensing Vent Pipe Extension KitPrecisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single unit tankless water heater venting. California residents see Prop 65 WARNINGS Concentric venting reduces install
Precisely engineered accessories can add even more reliability, convenience and flexibility to Rinnai Tankless Water Heaters. With Rinnai Common Venting, up to 8 tankless water heater units share the same vent system. This allows for significantly fewer wall or roof cuts, less labor, and longer vent lengths than ever possible with single-unit tankless water heater venting.- California residents
- Concentric venting reduces install time and costs
- Water heater accessories
- Easy assembly/adjustment
- Concentric venting allows for secure connection
- 2 in. / 4 in. condensing vent pipe extension 39 in.
- For use with Sensei Se+ tankless water heaters (condensing) and m-series boilers
- White finish
- Package quantity: 1
- Plastic construction
- 1-year limited warranty
- *Note. Rinnai is changing the language in its warranty terms and conditions found in the current User Installation manuals. The existing statement will be replaced by the following: “This Limited Warranty applies only to products that are installed in the United States and Canada. Improper installation may void this Limited Warranty. It is recommended that a trained and qualified professional who has attended a Rinnai installation training class complete your installation.” All warranties (old or new manual) will be honored as written above.
Features
| Item Weight | 2.83 |
| Includes | No Additional Items Included |
| Product Weight (lb.) | 2.83 |
| Pack Size | 1 |
| Finish Family | White |
| Returnable | 180-Day |
| Vent Part Type | Straight Vent |
| Material | Plastic |
| For Use With | Gas Tankless |
| Product Height (in.) | 4.33 |
| Product Width (in.) | 4.52 |
| Product Depth (in.) | 39.76 |
| Manufacturer Warranty | 1 Year limited warranty |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 2
Only about 1.75 inches thick, and hard as a rock.
Size: 2.7"H (Standard)
This is nowhere near the 2.7 inches advertised. After waiting 4 days for it to expand, it never got higher than 1.75 inches from bottom to the highest point. Also, I'm not sure what kind of Talalay they claim to use; this was hard as a rock.
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Reviewed in the United States on October 28, 2025
★★★★★ 5
Wonderful
Size: King (Pack of 1)
This pillow is amazing! If you want a good nights sleep, give this pillow a try!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Great Pillow!
Size: King (Pack of 1)
Excellent product. I have been searching for a pillow that wasn't too soft or too hard and supported my neck. I now wake up without a stiff neck and a headache. Wonderful!
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Reviewed in the United States on January 11, 2026
★★★★★ 4
Comfortable
Size: King (Pack of 1)
An adjustable pillow
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Reviewed in the United States on August 12, 2024
★★★★★ 5
Pillow
Size: King (Pack of 1)
Love it! Great support.
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Reviewed in the United States on April 28, 2026