15mm Olives

15mm olives are the small part that makes a compression joint seal and grip properly, so choosing the right ones matters when you are building new pipework or remaking an existing joint. This collection is focused on compatible 15mm compression systems, making it a practical choice for common domestic plumbing and heating work where 15mm pipe is widely used. It suits both one-off repairs and routine install work, with options that help you match the joint you are assembling rather than improvising on site.

The main decisions here are material, fitting compatibility and pack size. The range includes both copper and brass olives. Copper is generally softer and deforms more readily, while brass is firmer. Neither is automatically the better choice in every job, so the sensible approach is to check what suits the fitting manufacturer's compression system and the joint you are making. The 15mm size tells you the pipe and fitting size these olives are intended for, but it does not mean every 15mm fitting and pipe combination will be interchangeable.

This style of jointing is useful where you want a mechanical compression connection without soldering. That can make it a practical option for repairs, alterations and general maintenance, especially when you may need to dismantle the fitting later. One point worth keeping in mind. If an olive has already been compressed in a made joint, it should not be reused. When remaking a 15mm compression joint, you will normally need a new compatible olive, and you may also need to remove the old one from the pipe first.

Pack quantity is worth considering before you buy. A larger pack often makes sense for repeated installation work, van stock or keeping common spares ready for call-outs, while smaller requirements are usually about replacing a single joint cleanly and quickly. Within this range you will also see verified specification details such as compression connection type, WRAS approval and relevant standards where recorded, which can help you choose with more confidence for the job in hand.

If you are comparing sizes or building a broader stock of fittings, you can also browse the wider Compression Olives range, or move to 22mm Olives for larger compatible pipework. For 15mm work, the best next step is to match the olive material and pack size to your fitting system and whether you are handling a single repair or regular installation work.