Theres a vendor on ebay called ameka aquatics that sells cpr overflows including the aqualifter pumps for about 50 bucks less than jl even with shipping, if your interested. Mine showed up in a couple of days.
http://cgi.ebay.ca/CPR-CS90-DX-Overf...item5ad80074d4
not sure if this is the right size, but you can figure that part out