Found me a new cold water hammer. The new Shimano Enber 60SP was

Straight – straight compression arresters install on any ½ nom. Copper leg or riser and are especially popular in retrofitting ½ nom. Air chambers

Sioux Chief Chief-660-HB 660-HB Water Hammer Hose Arrestor, 3/4-Inch

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Solved! Water Hammer (Save $100)

How to Fix Water Hammer Quick and Easy for $15

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ENBER 60SP FLASH BOOST – Shimano US Fish Shop

End Watering Hammering - DIY Plumbing

Sioux Chief Chief-660-HB 660-HB Water Hammer Hose Arrestor, 3/4

How to Fix Water Hammer Quick and Easy for $15

How to Fix Water Hammer Quick and Easy for $15

ENBER 60SP FLASH BOOST – Shimano US Fish Shop

New for 2023 SHIMANO ENBER 60SP Walkthrough and Specs

ENBER 60SP FLASH BOOST – Shimano US Fish Shop

How to Quiet Pipes With a Water Hammer Arrestor

What Is Water Hammer, and How Can I Fix It?