I read in reviews that some of these straps are too loose. But I decided to take a chance. Of course, mine fits looser than the previous PN5-PN6 straps I've always used on my Electrolux power head. After seeing how loose this fit was, I was afraid it would be too loose to stay, but I decided to give it a try. After installation I vacuumed the carpet for about 5 minutes and it stayed in place. I don't expect him to last long no matter how free he is. I have included the above images to show my original belt on the left with the number PN5-PN6 clearly printed on the belt. The second picture shows the outside of the package that my new belt with the same number came in. However, if you look at the new replacement belt out of the box, it has two part numbers (021 KO22 B and gul-tz B54x4.7). This strap is not an exact replacement part and is slightly longer. It's close, but I'm not happy that it's listed on the box and sold as a PN5-PN6 belt. That's why so many people complain about it being loose. I hope Revain takes action to deal with this type of misinformation.
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