Alpha Isolation Valves & Connections Seal Kit 3.013388


31 in stock

SKU: N1205 Categories: , ,


This part fits following boilers:

Alpha CD 24 C
Alpha CD 32 C
Alpha CB 24
Alpha CB 24X
Alpha CB 28
Alpha CB 28X
Alpha SY 24
Alpha C23
Alpha C27
Alpha HE CB25
Alpha HE CB33
Alpha HE SY25
Alpha CD 25 C
Alpha CD 28 C
Alpha CD 35 C
Alpha CD 18 S
Alpha CD 24 S
Alpha CD 30 S
Alpha CD 25 X
Alpha CD 28 X
Alpha CD 50

Below information is for refurbished products with sales options, please read out carefully. If the product does not have a sale option under its’ title, please disregard the following information:

DIRECT SALE: This is when you buy the part outright without needing to send your part back to us.

REFURBISHMENT (EXCHANGE) SERVICE: When you select this service, you agree to send your faulty item to our main address to be reconditioned and sent back to you. Our price includes delivery to you and you would need to pay the postage to send the item to us. In most cases we repair and send the item back the same day of receiving it, please select next day delivery option during checkout to receive the item back the next day.

Please send your faulty part to:

National Boiler Parts
Tyne View Terrace
Newcastle Upon Tyne
NE28 6SG

ADVANCE REPLACEMENT SERVICE: This service is for customers who would like to receive replacement part without sending the faulty one back to us first. We will send you a replacement part the same working day and charge you a £30.00 deposit for your faulty part. Once we have received your faulty part we will refund your £30.00 deposit. Please choose this service if your faulty part is in a repairable condition. If the part is burnt, broken or cracked and not repairable we may refuse to issue a refund for your deposit.  Please keep in mind that if this option or Direct Sale option is not available, we may not have a part in stock to send out first. If unsure please call 0191 263 3708 or email at

Additional information

Weight30 g
Part Number






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