Copper Tubing 3/4" OD x 0.687" x 5 ft, 99.9% C12200 ASTM B280 Refrigeration A...

About this item

This 3/4 OD copper refrigeration tubing is a 5 ft length listed as 3/4" OD x 0.687". It's made from 99.9% C12200 copper to ASTM B280, the standard for air conditioning and refrigeration tube. New, one piece, $75.99 from an independent eBay seller.

Can 3/4 OD copper refrigeration tubing be used for water lines?

Refrigeration tube is sized by its actual outside diameter, while plumbing tube uses nominal sizes. That means 3/4" OD tube fits 5/8" nominal plumbing fittings, not 3/4" ones. Check fitting sizes and local code before using it outside HVAC work.

• Joining: brazing, sweat fittings sized by OD, or flaring where it fits the job.
• The 0.687" figure looks like the inside diameter. Confirm the wall thickness in the listing.
• A 5 ft piece suits repairs, coil connections and short suction or liquid runs.
• Cap the ends to keep moisture and debris out until you install it.

HVAC shops buying in quantity can request a wholesale quote on our site.