NOTE: NOT shipped in an envelope, securely packaged in a 15 x 15 x 15 CM Heavy Duty box to prevent damage to the soft materials. Expect shipping prices to be similar to other products.
Alert: LOW inventory and price increase coming.
Designed for quiet operation and simple installation.
The rim drive O-ring should be replaced annually, they have excellent compliance and low noise transfer. However due to the "soft" compliant material they should be replaced annually for much improved speed and noise control.