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Nefit non-return valve set for TopLine
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Nefit non-return valve set for TopLine 74588

€ 42.60 incl. VAT

Original spare part Nefit (Bosch). Type: Non-return valve. Application: Boiler / TopLine Aquapower HRC 25 CW4. Supplier code: 74588.

Special-order item — delivery time approx. 1–2 weeks — non-returnable

SKU: 8026807 Categories: , Brand:

Price and stock checked on 20 October 2026.

Made-to-order item — ordered specially for you, see delivery time below
EU delivery from € 17.95 · Shipping & payment

Price incl. VAT. Any delivery costs are calculated in the basket — see shipping & delivery.

Does this fit my appliance?
ApplicationBoiler
Series / modelTopLine Aquapower HRC 30 CW5 II and 19 other models
Nefit (Bosch) number74588
Article number8026807
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Nefit (Bosch) TopLine Aquapower HRC 30 CW5 II →
Made-to-order item — this spare part is not on our shelf and is ordered specially for you from the manufacturer or wholesaler, delivery time approx. 1–2 weeks. Specially ordered items cannot be returned: the manufacturer or supplier does not take them back. So check the type number of your appliance and the article number of the spare part beforehand. In doubt? Check with the manufacturer or your installer (see also returns).
9,0/10 WebwinkelKeur⚠ Made-to-order item: no returns possible iDEAL · Klarna · Bancontact 085-303 7272 ma–vr 08:00–17:00

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Nefit non-return valve set for TopLine: original Nefit spare part, type: Non-return valve. Application: Boiler (TopLine Aquapower HRC 25 CW4). Manufacturer number: 74588; Instalpunt article number: 8026807.

According to the Nefit parts lists, this part fits 20 models, including Nefit (Bosch) TopLine Aquapower+ HRC 25 CW6, Nefit (Bosch) TopLine Aquapower+ HRC 25 CW6 II and Nefit (Bosch) TopLine Aquapower+ HRC 30 CW6. The full list is under “Fits”.

Special-order item: it is ordered specially for you from the manufacturer and is non-returnable.

Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.

Product information: Nefit non-return valve set for TopLine 74588

BrandNefit (Bosch) spare parts
Nefit (Bosch) manufacturer number74588
Instalpunt article number8026807
EAN4047416305134
Part typeNon-return valve (All Nefit (Bosch) valves · valves of all brands)
ApplicationBoiler
Suitable for20 Nefit (Bosch) models (see list)
DeliveryMade-to-order item
Price€ 42,60 incl. VAT
OriginSupplied through the official technical wholesale channel, under Nefit (Bosch) number 74588

Fits 20 Nefit (Bosch) models

The part Nefit non-return valve set for TopLine 74588 is in the official parts list of these Nefit (Bosch) appliances. Click a model for the complete parts list and exploded view.

Nefit (Bosch) Boiler (20)

Check the rating plate of your appliance. Not sure whether this part fits? Check with the manufacturer or your installer; with the correct manufacturer number you can order it here directly.

More spare parts for this appliance

Does this fit my appliance?

Enter your appliance type, for example as shown on the rating plate. You will see straight away whether the Nefit non-return valve set for TopLine 74588 is in the parts list of that model.

Not found? Check the rating plate of your appliance or search by article number. If in doubt, just email info@instalpunt.nl.

Position on the parts diagram

This part appears on the exploded view of 19 appliances. Open the drawing for the appliance and click the number to check that you have the right part.

Also appears on the drawing of 13 other models.

Available: Non-return valve for the same appliances

This part is currently out of stock. These Nefit (Bosch) parts of the same type are listed for at least one of the same appliance models and are available.

Before ordering, check the manufacturer number in the spare parts list or exploded view of your appliance.

Frequently asked questions about this item

Does the Nefit non-return valve set for TopLine 74588 fit my appliance?
This part is in the parts list of 20 Nefit (Bosch) models, including the TopLine Aquapower+ HRC 25 CW6, TopLine Aquapower+ HRC 25 CW6 II, TopLine Aquapower+ HRC 30 CW6, TopLine Aquapower+ HRC 30 CW6 II. The model type is on the rating plate of your appliance. Use the “Does this fit my appliance?” search box on this page to check your model. If in doubt, ask the manufacturer or your installer.
What is the delivery time of this made-to-order item?
This is a special-order item: we order it specially for you from the wholesaler. The expected delivery time is approx. 1–2 weeks. You can also see the delivery time next to the stock status at the top of this page.
Can I return this made-to-order item?
A specially ordered item is not taken back by the supplier, so returns are not possible. So check the article number and the rating plate of your appliance beforehand. Is something wrong with your order? Then contact us via info@instalpunt.nl. The full terms and conditions are on returns.
What does shipping cost?
Shipping costs € 17.95 to Austria, Denmark, Italy, Spain and Sweden and € 24.95 to other EU countries. In-stock items ordered before 2 pm are dispatched the same working day; delivery usually takes 3–5 working days. Details: Shipping.
I have a fault code, which part do I need?
Look up the code in the fault code finder: per brand and appliance it shows what the code means and which part goes with it. If the code is listed with this part, the part belongs to that fault.

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