best polyurethane for ac ply
For years, polyurethane tubing has lacked a perfect blend of high-pressure resilience and temperature resistance, which is why I was excited to thoroughly test the AC PERFORMANCE ID 3.5″ Silicone Straight Coupler 3″ Length. From quick bursts of pressure to extreme heat, this piece felt robust in all situations. Its 200 PSI max pressure rating … Read more