Hase announced a recall of their aluminum tandem couplers a few months back. We now have the replacement steel couplers in stock, so if you've purchased an aluminum coupler from us in the past, please contact us for replacement information.
When sending in your couplers for replacement, please send only the main coupler hardware - do not send spacers, washer, bolts, et cetera.
Here are photos of both the aluminum and steel couplers (don't they look happy?):