Alcoa spiral

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Quick Learner from Geneva il 60134

Oct 15, 2025 3:15 pm

These seem to be 900 series blue ,3/8 x30" but I don't see you sell blue in this length

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Quick Learner from Geneva il 60134

Oct 15, 2025 7:22 pm

Am I supposed to measure the OD of the plastic that went around the spring ,that's .562

Emily from SWISCO

Oct 21, 2025 10:14 am

Hi there!

Thank you for reaching out to us. You want to measure the outer plastic tube to determine the diameter. With that said, see the S600-30. The metal tube measures 9/16" in diameter, but it is considered 5/8" in the trade.

Please let us know if you have any questions.