They don't sell in the USA any longer. I have the same problem. I am going to Europe in July and hoping to buy replacement Stabilizer Foot Caps while I am there. What color were the feet on your ladder?
I have the same problem. A web search pulled up their site in teh UK where I found the part (stabilizer foot caps # 211194 for the orange ones). check for a recall on that ladder model though, there was a recall in 1998 for that model. check the label for CSA Issue Numbers KL-0001, KL-0002, KL-0003, or KL-0004. Also the Underwriters Lab Issue Numbers AC 7404 through 7488, 7494, of 7495. If that affects you take teh ladder in for exchange or refund.
I contacted the company in the UK last year and they told me that the feet they have do not fit the US version. I just returned from London on Friday and didn't bother to try and contact them.
These ladders have not been sold for over 10 years. I think a refund or exchange is unlikely.
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them