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Atag O-ring siphon R 46 x 3 mm
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Atag O-ring siphon R 46 x 3 mm S4309900

€ 30.70 incl. VAT

Original spare part Atag. Type: O-ring, Siphon. Application: Boiler / A203C | vanaf 2008 OSS1. Supplier code: S4309900.

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

SKU: 8135190 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 / modelA244C and 69 other models
Atag numberS4309900
Article number8135190
Not sure? Search by article or manufacturer number or check with the manufacturer or your installer.
All spare parts for Atag A244C →
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).
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Atag O-ring siphon R 46 x 3 mm: original Atag spare part, type: O-ring, Siphon. Application: Boiler (A203C | vanaf 2008 OSS1). Manufacturer number: S4309900; Instalpunt article number: 8135190.

According to the Atag parts lists, this part fits 70 models, including Atag A203C | vanaf 2008 OSS1, Atag A203EC | vanaf 10-2016 OSS2 and Atag A244CL | vanaf 11-2009 OSS1. 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: Atag O-ring siphon R 46 x 3 mm S4309900

BrandAtag spare parts
Atag manufacturer numberS4309900
Instalpunt article number8135190
EAN8719638543361
Part typeO-ring (All Atag gaskets and seals · gaskets and seals of all brands)
ApplicationBoiler
Suitable for70 Atag models (see list)
DeliveryMade-to-order item
Price€ 30,70 incl. VAT
OriginSupplied through the official technical wholesale channel, under Atag number S4309900

Fits 70 Atag models

The part Atag O-ring siphon R 46 x 3 mm S4309900 is in the official parts list of these Atag appliances. Click a model for the complete parts list and exploded view.

Atag Boiler (70)

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 Atag O-ring siphon R 46 x 3 mm S4309900 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 24 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 18 other models.

Available: O-ring for the same appliances

This part is currently out of stock. These Atag 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 Atag O-ring siphon R 46 x 3 mm S4309900 fit my appliance?
This part is in the parts list of 70 Atag models, including the A203C | vanaf 2008 OSS1, A203EC | vanaf 10-2016 OSS2, A244CL | vanaf 11-2009 OSS1, A244C | vanaf 2008 up to 11-2009 OSS2. 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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