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USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
For Your Every Summer RSVP, with Code: SUMMER15
Description
2 in. / 4 in. Plastic Condensing Roof Discharge Venting TerminationPrecisely 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

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
4.0 ★★★★★
Based on 885 reviews
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Product Reviews
★★★★★ 5
It’s fixed
That awful boat… don’t buy boats unless you like to spend money OBVIOUSLY! This part fixed the boat!
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Good
Good quality
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Reviewed in the United States on April 28, 2026
★★★★★ 5
good replacement
good
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Seal
Perfect, worked great!
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Reviewed in the United States on June 4, 2025
★★★★★ 5
Great
Great
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Reviewed in the United States on August 5, 2025




