Different brands of rubbers with different channels?

[JaredAI]

Then you’re a better cleaner than I am.

Unger: what are you trying to pull?

I ordered a couple 12 packs of hard rubber, Unger and Pulex. I tried the Pulex out for a week and it worked pretty good. Then it got cold and it didn’t work as well as the ettore rubber, but still did the job. Pretty good not really bad. Then I put in the Unger late friday and forgot about it. Monday and Tuesday were painful. I thought I had hit my head and forgot how to fan the window. I was leaving like entire splotches of water on the glass and I just couldn’t close to save my life. I was ge…