ProPEX Red Brass fitting Adapters transition PEX-a tubing to copper fittings. Highly resistant ot the effects of aggressive water conditions, published research has repeatedly demonstrated that red brass is generally regarded as immune to dezincification and stress-corrosion cracking. Red Brass Fittings are safe for direct burial in soil in accordance with Uponor installation guidelines.
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Q:Can pex "copper fitting" adapters be soldered directly into another brass fitting? The brass to brass fit doesn't seem as snug as the copper to brass. Thanks.
A:Yes, you can solder the fitting adapter directly to another brass fitting. Typically, contractors will sweat the fitting adapter directly to a brass ball valve as this is common practice.