Use either a Leaded Solder (for central heating systems) or a Lead-Free Solder (for hot and cold (potable) water/appliances) and a high-quality Plumbing Flux. Copper End Feed 45 Degree Elbow � 15mm. Other sizes Available:End Feed 45 Degree Elbow - 15mm, 22mm, 28mm & 35mm.
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