10pack 15MM 90º STREET ELBOW WATER PRESS FITTING. Copper Press MasterFlow 'M' Press is the quick and easy to install plumbing fitting with a permanent press joint. Available in sizes 15 mm to 76 mm, copper press is suitable for HVAC and hot and cold drinking water applications. WRAS approved. Fast and easy-to-use. Flame-free installation. For use with hard, half-hard and soft copper tube manufactured in accordance with EN 1057. Specially designed O-ring with leak detection indicators (up to 54 mm) Highly resistant to corrosion and oxidisation with anti-microbial properties. Full product guarantee