Description
Baxi 720789401 Brass Flow Assembly Without Bypass (Refurbished) | Fits Baxi, Potterton & Main Boilers
The Baxi 720789401 Brass Flow Assembly Without Bypass (Refurbished) is a high-quality, genuine replacement diverter valve designed for a wide range of Baxi, Potterton, and Main combi boilers. This refurbished part ensures reliable water flow management and heating performance, extending the life of your boiler system while maintaining manufacturer-level efficiency.
Compatible Boilers & GC Numbers (Grouped by Series):
🔥 Baxi Boilers:
24 Combi – GC No. 47-075-67
28 Combi – GC No. 47-075-68
40 Combi – GC No. 47-075-70
Duo Tec 2 24 GA Range – GC No. 47-075-54
Duo Tec 2 28 GA Range – GC No. 47-075-55
Duo Tec 2 33 GA Range – GC No. 47-075-56
Duo Tec 2 40 GA Range – GC No. 47-075-57
Platinum 2 Combi 28 GA – GC No. 47-075-61
Platinum 2 Combi 33 GA – GC No. 47-075-62
Platinum 2 Combi 40 GA – GC No. 47-075-63
🔥 Potterton Boilers:
Promax Ultra 24 Combi ERP – GC No. 47-393-54 (AC, BC, CC, DC)
Promax Ultra 28 Combi ERP – GC No. 47-393-55 (AC, BC, CC, DC)
Promax Ultra 33 Combi ERP – GC No. 47-393-56 (AC, BC, CC, DC)
Promax Ultra 40 Combi ERP – GC No. 47-393-57 (AC, BC, CC, DC)
🔥 Main Boilers:
Various Main Combi Models – Compatible diverter valve for multiple systems using part number 720789401
At Heating and catering parts,
We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy
We appreciate you buying from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package.
Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday. At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.
In a word thank you for choosing us!
If you’re looking for a Potterton Titanium Hydraulic Inlet 40KW 5132455 or any other different Potterton Diverter Valve, follow the link provided.
Why Choose This Product?
This refurbished Potterton flow assembly restores optimal water movement through your boiler, ensuring stable performance and reliability. The boiler water flow assembly is thoroughly tested before dispatch, providing a cost-effective and eco-friendly alternative to a brand-new unit. With a 12-month warranty, you gain peace of mind while maintaining your heating system’s efficiency.
Delivery and Return
Place orders before 1 PM for same-day dispatch via reliable couriers. Choose from standard or next-day delivery options. Returns are accepted within 30 days if the part is unused and in original packaging. Always use a Gas Safe registered engineer for safe installation and warranty validation.









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