Primaplus compression fittings are a premium brass fitting, manufactured in Britain. Primaplus compression fittings can be used for a variety of installations including water and gas. Made in Britain to EN 1254 standard, and fully WRAS approved, you can be sure of a perfect fit each time. PrimaPlus fittings are also kite marked, ensuring that they are to the highest British standard, setting them apart from others manufacturers. Pack of 5 (5 x 3 Part Sets) Kite marked approval BS Standard. WRAS approved for use with drinking water. Manufactured to EN 1254 standard.