
The McAlpine S23 is a blank cap with a nut for BSP threads. It is designed to be used to close off an unused threaded outlet or fitting in a plumbing system. The cap and nut are made of high-quality materials that ensure durability and long-lasting performance. The nut provides a secure and leak-free connection that is resistant to vibration and movement. This product is commonly used in plumbing installations where there are unused threaded outlets or fittings that need to be capped off to prevent water leaks or other issues. Available in 1.25", 1.5", and 2" sizes
It is designed and manufactured by McAlpine, a UK-based company that specializes in plumbing products.
49p delivery on all orders over £30 (exc. Bulky Item Delivery)
Super Saver Delivery
£0.49
Standard Delivery
£3.99
Express Delivery
£5.99
Next Day Delivery
£6.99
24/7 InPost Locker | Shop Collect
£2.49
Evri ParcelShop
£3.99
Evri ParcelShop | Express Delivery
£5.99
Premium DPD Next Day Delivery
£7.99
Bulky Item Delivery
£4.99
Northern Ireland Super Saver Delivery
£2.99
Northern Ireland Standard Delivery
£4.99
Northern Ireland Express Delivery
£5.99
Unlimited free delivery for a year with Unlimited Delivery for £14.99
Please note, some delivery methods are not available for products delivered by our brand partners & they may have longer delivery times
Something not quite right? You have 28 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.
Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
Click here to view our full Returns Policy.

The McAlpine S23 is a blank cap with a nut for BSP threads. It is designed to be used to close off an unused threaded outlet or fitting in a plumbing system. The cap and nut are made of high-quality materials that ensure durability and long-lasting performance. The nut provides a secure and leak-free connection that is resistant to vibration and movement. This product is commonly used in plumbing installations where there are unused threaded outlets or fittings that need to be capped off to prevent water leaks or other issues. Available in 1.25", 1.5", and 2" sizes
It is designed and manufactured by McAlpine, a UK-based company that specializes in plumbing products.
49p delivery on all orders over £30 (exc. Bulky Item Delivery)
Super Saver Delivery
£0.49
Standard Delivery
£3.99
Express Delivery
£5.99
Next Day Delivery
£6.99
24/7 InPost Locker | Shop Collect
£2.49
Evri ParcelShop
£3.99
Evri ParcelShop | Express Delivery
£5.99
Premium DPD Next Day Delivery
£7.99
Bulky Item Delivery
£4.99
Northern Ireland Super Saver Delivery
£2.99
Northern Ireland Standard Delivery
£4.99
Northern Ireland Express Delivery
£5.99
Unlimited free delivery for a year with Unlimited Delivery for £14.99
Please note, some delivery methods are not available for products delivered by our brand partners & they may have longer delivery times
Something not quite right? You have 28 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.
Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
Click here to view our full Returns Policy.
Extend your warranty and protect your purchase against accidental damage and defects.
Protects your new S23 1.25" Blank Cap with nut for BSP threads against breakdowns and faults once the manufacturer's warranty period is over.
Covers issues not included in your manufacturer's warranty, such as accidental damage or theft.
Get a replacement or a cash refund up to the full amount you originally paid for it.
FAQs
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