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Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
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Description
39 in. Plastic Vent Pipe Extension for High Efficiency and High Efficiency Plus Tankless Water HeatersPrecisely 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
- Engineered concentric venting especially for gas appliances
- Easy assembly/adjustment
- Concentric venting allows for secure connection
- 39 in. vent pipe extension
- For use with HE+ and HE series tankless water heaters (non-condensing)
- White finish
- Package quantity 1
- 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 | 5.5 |
| Product Weight (lb.) | 5.5 |
| Pack Size | 1 |
| Finish Family | White |
| Returnable | 180-Day |
| Material | Plastic |
| Product Width (in.) | 65 in |
| Product Depth (in.) | 6.25 |
| Product Height (in.) | 40 |
| 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
4.6 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Great Gel Wrist Pad
Size: Full Size
My husband games with the boys every weekend, and he had finally splurged on a gaming system and new monitors. I bought this for him so he can rest his wrists while using the keyboard. He says the quality is great, length perfectly fits the keyboard, it does feel like it is cooling, nice design, very durable so far, not too high so his wrists sit comfortably for typing. Would purchase again but it looks like we won't need to as it is holding up very well.
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Its a buy for me. I love this.
Size: TKL- Tenkeyless
The wrist rest is perfect, it stays cool, it feels great on the wrists, perfect height, good value for money, feels very durable, the shape and smell is perfect.
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Reviewed in the United States on January 8, 2026
★★★★★ 5
Comfortable, Supportive, and Worth Every Dollar
Color: Black, Item Shape: Classic, Color: Black, Item Shape: Classic
I didn’t realize how much tension I was carrying in my legs and lower back until I started using this footrest.
The memory foam is firm but comfortable — it doesn’t flatten out like cheaper ones. I love that it’s height-adjustable, so I can customize it depending on how I’m sitting. It instantly improved my posture and took pressure off my hips and lower back, especially during long desk and gaming sessions.
The build quality feels premium, it stays in place on the floor, and the cover is soft and easy to clean. After using it for a few days, I noticed less stiffness and way better overall comfort while sitting.
If you spend hours at a desk, do yourself a favor and get this. Simple upgrade, huge difference.
Highly recommended.
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Foot rest
Color: Gray, Item Shape: Classic
It's very sturdy. It's very comfortable. It's not too soft. It's not too hard. I like it. I flip it when I sit in my chair when I'm on my iPad I can use the lower level when I'm relaxing. I flip it over and I use the the round part of it. It's just perfect for me.. I have plantar fasciitis and it really helps the heels of my feet.
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Good product.
Color: Black, Item Shape: Classic
It is helpful for sure. I had knee surgery and this helped me keep my knee comfortable while working. I wish it was able to raise my leg up a bit more but for the price this is fine.
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Reviewed in the United States on February 24, 2026